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China OEM Hot Sale 4140 Alloy Steel Forged Gear Ring for Construction Machinery, Forging Slewing Bearing with CNC Machining for Marine

Product Description

Products: Free Forging and Open Die Forging factory. 

 

Our factory: 
A. More than 25 years of professional free forging and open-die forging manufacturing experience
B. The company covers an area of 71,000 square CHINAMFG
C. The construction area of the production workshop is 12,000 square CHINAMFG
D. Total number of employees: 158
E. 28 engineering and technical personnel
F. 59 skilled workers
G. Annual production capacity is 38,000 tons
H. Annual raw material steel throughput turnover reaches 56,000 tons

Our Forged Steel Products
Tiangong Forging supplies a variety of semi-finished forged steel products, with the main materials being nickel-molybdenum steel, alloy steel, die steel, stainless steel and carbon steel. In addition to general steel grades such as 35#, 45#, 42CrMo, 42CrMo4, 18CrNiMo7-6, 20CrNi2Mo, 30CrNiMo8 and etc., we can also prepare the required steel according to other national specifications or specified alloy compositions requested by customers.

The maximum production shaft forging length/weight is 12m/15T; the maximum gear and wheel forging diameter/weight is 1.9m/9T.
We are particularly specialized in the forging of special-shaped forging parts.


steel hot forging raw forging gear shaft 
 

Description

Steel hot forging raw forging gear shaft       
Forged Gear Blank
Wheel and Pulley
Forged Shaft
Hollow Shaft
Crankshaft
Multi-stepped Shaft
Various forged blank and block
 Special-shaped Forging Parts                                 

Type

Free forging. 

Application

Wind power Transformisson system , machinery and other industry

Processing

Forging+machining+heating Treatment

Material

steel SAE 4340, 4140,C45,42CrMo4,20CrMnTi,

Weight Ranges

0.1kg-50tons

Roughness

Ra0.4 – 0.8

Our Certificates:  

Our Lab equipment:  

Our main Products:  

A.Forged Gear Blank
B.Wheel and Pulley
C.Forged Shaft
D.Hollow Shaft
E.Crankshaft
F.Multi-stepped Shaft
G.Various forged blank and block
 I. Special-shaped Forging Parts

Application:  
Our main customers: ZPMC, CHINAMFG and ZheJiang Electric etc.

Our parts are widely used in Chemical Industry, Wind power generator, Large machinery parts Chemical industry,Agricultural machinery parts ship shaft fittings. Wind Power gearbox Transmission system. 

HangZhou Port, HangZhou automatic Port, ZheJiang Yang shan Port, Italy Vado port. ZheJiang Tailway crane, Egypt hanging bridge, Sri Lanka railway crane, Thailand port bridge. South Korea railway crane, Hongkong island bridge, Singapore railway crane, Russia oil & mining machines and some miltary project. etc.

Customized solutions
Our modular process allows us to design solutions various industrial application requiring free-forged and open-die-forged parts. Our modularity means flexibility, wide choice, faster delivery and, above all, competitiveness.

All Tiangong Forging, products and production processes are designed to ensure exceptional, reliable and long-lasting unique mechanical properties, thereby reducing operating costs and extending service life.
With an extensive product range and extensive experience gained in most industrial applications, we can also provide engineering advice to our customers.

Welcome to visit our factory!  Welcome to send inquiry to us.  

Welcom Trading compamy to co-operate.  

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Processing Object: Metal
Molding Style: Forging
Molding Technics: Free Forging
Samples:
US$ 1000/Ton
1 Ton(Min.Order)

|

Order Sample

Customization:
Available

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Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

In what industries or scenarios are slewing rings commonly employed?

Slewing rings find extensive use in various industries and scenarios where controlled rotational movement and load-bearing capabilities are required. Here’s a detailed explanation of the industries and scenarios where slewing rings are commonly employed:

  • Construction and Heavy Machinery: Slewing rings are widely used in the construction industry for applications such as cranes, excavators, and concrete pumps. They enable the rotation of booms and arms, allowing for efficient material handling, precise positioning, and heavy load support.
  • Wind Energy: Slewing rings play a crucial role in wind turbines. They support the rotor and enable the yaw and pitch movements necessary to optimize wind capture and power generation. Slewing rings in wind turbines must handle substantial loads and operate reliably in harsh environmental conditions.
  • Industrial Automation: In industrial automation, slewing rings are employed in indexing tables, turntables, robotic arms, and packaging machinery. They enable precise and controlled rotation, facilitating automated processes, assembly lines, and material handling systems.
  • Transportation and Automotive: Slewing rings are commonly used in transportation and automotive applications, including vehicle cranes, truck-mounted cranes, aerial platforms, and rotating platforms for heavy-duty vehicles. They provide stable connections and controlled rotation, supporting tasks such as loading and unloading cargo or enabling safe access to elevated areas.
  • Marine and Offshore: Slewing rings are extensively employed in marine and offshore equipment, including ship cranes, davits, and rotating platforms on ships and offshore rigs. They withstand corrosive marine environments and heavy loads, enabling lifting operations and controlled rotation in challenging conditions.
  • Aerospace and Defense: Slewing rings are vital components in aerospace and defense applications, such as radar systems, missile launchers, and satellite antennas. They facilitate precise rotational movements required for tracking, targeting, and communication systems, and must meet stringent requirements for reliability and precision.
  • Medical and Rehabilitation: Slewing rings are used in medical and rehabilitation equipment like patient lifts, adjustable beds, and examination tables. They enable smooth and controlled movement, aiding in patient transfers, positioning, and providing comfort and support.

These are just a few examples of the industries and scenarios where slewing rings are commonly employed. Their versatility, load-bearing capacity, and ability to facilitate controlled rotation make them essential components in a wide range of applications across industries such as construction, renewable energy, industrial automation, transportation, marine, aerospace, and healthcare.

Can you describe the factors to consider when selecting slewing rings for specific applications?

When selecting slewing rings for specific applications, several factors need to be considered to ensure optimal performance and reliability. Here’s a detailed description of the factors to consider:

  • Load Requirements: The load capacity of the slewing ring should match the anticipated loads in the application. Consider both the maximum static load (weight of the structure or equipment) and dynamic load (forces during operation). It is crucial to analyze the load distribution, including axial, radial, and moment loads, and select a slewing ring with sufficient load-carrying capacity to handle these loads.
  • Space Limitations: Evaluate the available space for the installation of the slewing ring. Consider the diameter, height, and width of the slewing ring to ensure it fits within the space constraints of the application. It is essential to consider both the external dimensions of the slewing ring and the required clearance for rotation.
  • Rotational Speed: Determine the required rotational speed of the slewing ring. Consider the application’s operating speed and any specific speed limitations. The slewing ring should be selected to accommodate the rotational speed requirements while maintaining smooth and efficient operation.
  • Environmental Conditions: Evaluate the operating environment of the application. Factors such as temperature, humidity, dust, water exposure, chemicals, and corrosive elements should be considered. Choose a slewing ring with appropriate sealing systems, corrosion-resistant materials, and lubrication options to withstand the specific environmental conditions.
  • Accuracy and Positioning: Some applications require precise positioning and rotational accuracy. Determine the required level of accuracy and select a slewing ring that provides the necessary precision. Factors such as gear mechanism, backlash control, and manufacturing tolerances contribute to the accuracy of the slewing ring.
  • Operating Conditions: Consider the overall operating conditions of the application, including factors such as shock and vibration levels, duty cycle, continuous or intermittent operation, and expected service life. The slewing ring should be designed to withstand the anticipated operating conditions and provide reliable performance over the desired lifespan.
  • Integration and Compatibility: Assess the integration requirements of the slewing ring with the rest of the system or equipment. Consider factors such as mounting interfaces, connection points, gear compatibility, and the need for additional components such as drive systems or bearings. Ensure that the selected slewing ring is compatible with the existing or planned system components.
  • Industry Standards and Regulations: Depending on the application, specific industry standards and regulations may apply. Consider any applicable standards, such as ISO specifications or industry-specific guidelines, to ensure compliance and safety in the selection of the slewing ring.

By carefully analyzing these factors and selecting a slewing ring that meets the specific requirements of the application, one can ensure optimal performance, longevity, and reliability of the slewing ring in its intended use.

What advantages do slewing rings offer compared to other rotational components?

Slewing rings offer several advantages compared to other rotational components. Their unique design and features make them a preferred choice in various applications. Here’s a detailed explanation of the advantages that slewing rings offer:

  • Compact Design: Slewing rings have a compact design that allows for efficient use of space. Compared to other rotational components such as gears and bearings, slewing rings provide a compact solution for supporting axial, radial, and moment loads while enabling rotational motion. Their compactness is especially advantageous in applications with limited space or weight constraints.
  • High Load-Carrying Capacity: Slewing rings are designed to handle significant loads. They are capable of supporting both axial and radial loads, as well as moment loads that result from uneven weight distribution or external forces. The robust construction and precise engineering of slewing rings enable them to withstand heavy loads, making them suitable for applications that require high load-carrying capacity.
  • Smooth Rotation: Slewing rings offer smooth rotation, allowing for precise and controlled motion. The rolling elements, whether balls or rollers, are positioned and guided within the raceways of the slewing ring to minimize friction and ensure smooth movement. This smooth rotation contributes to precise positioning and controlled motion, which is essential in applications that require accurate positioning and smooth operation.
  • Integrated Gear Mechanism: Many slewing rings come with an integrated gear mechanism. This eliminates the need for additional gearing components, simplifies the design, and reduces assembly time and costs. The integrated gear mechanism allows for torque transmission and rotational control, enabling precise and controlled motion without the need for external gearing systems.
  • Backlash Control: Slewing rings can be designed with minimal backlash, ensuring precise motion control. Backlash refers to the play or clearance between mating gears or components, which can lead to lost motion or inaccuracies in positioning. By minimizing backlash, slewing rings offer improved accuracy and repeatability in motion control applications.
  • Versatility and Customization: Slewing rings are highly versatile and can be customized to meet specific application requirements. They can be tailored in terms of dimensions, load capacity, mounting interfaces, gear specifications, sealing systems, and materials. This versatility allows slewing rings to be optimized for various industries and applications, ensuring the best performance and compatibility.
  • Durable and Low Maintenance: Slewing rings are designed to be durable and require minimal maintenance. They are constructed with high-quality materials, precision manufacturing, and appropriate sealing systems to withstand harsh operating conditions and contaminants. This durability and low maintenance requirement contribute to the long service life and reliability of slewing rings.

Overall, slewing rings offer advantages such as compact design, high load-carrying capacity, smooth rotation, integrated gear mechanism, backlash control, versatility, customization options, and durability. These advantages make slewing rings a preferred choice in various applications, including construction machinery, material handling equipment, cranes, wind turbines, robotics, and manufacturing systems.

China OEM Hot Sale 4140 Alloy Steel Forged Gear Ring for Construction Machinery, Forging Slewing Bearing with CNC Machining for Marine  China OEM Hot Sale 4140 Alloy Steel Forged Gear Ring for Construction Machinery, Forging Slewing Bearing with CNC Machining for Marine
editor by Dream 2024-05-16

China high quality OEM Turntable Bearing 10-20 0411/0-02013 Slewing Ring for Ladle Turret

Product Description

OEM Turntable Bearing 10-20 571/0-57113 Slewing Ring For Ladle Turret

Four-point contact ball slewing turntable bearings 
consist of 2 ring seats. Compact structure, light weight, steel ball and arc track contact at 4 points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.

 

No Non gear Dimensions Mounting Dimensions Structural Dimensions Weight
(kg)
DL
mm
D
mm
d
mm
H
mm
D1
mm
D2
mm
n mm dm
mm
L
mm
n1
mm
D3
mm
d1
mm
H1
mm
h
mm
1 571.20.200 280 120 60 248 152 12 16 M14 28 2 201 199 50 10 17
2 571.20.224 304 144 60 272 176 12 16 M14 28 2 225 223 50 10 20
3 571.20.250 330 170 60 298 202 18 16 M14 28 2 251 249 50 10 22
4 571.20.280 360 200 60 328 232 18 16 M14 28 2 281 279 50 10 24
5 571.25.315 408 222 70 372 258 20 18 M16 32 2 316 314 60 10 37
6 571.25.355 448 262 70 412 298 20 18 M16 32 2 356 354 60 10 45
7 571.25.400 493 307 70 457 343 20 18 M16 32 2 401 399 60 10 50
8 571.25.450 543 357 70 507 393 20 18 M16 32 2 451 449 60 10 55
9 571.30.500 602 398 80 566 434 20 18 M16 32 4 501 498 70 10 85
9Y 571.25.500 602 398 80 566 434 20 18 M16 32 4 501 499 70 10 85
10 571.30.560 662 458 80 626 494 20 18 M16 32 4 561 558 70 10 95
10Y 571.25.560 662 458 80 626 494 20 18 M16 32 4 561 559 70 10 95
11 571.30.630 732 528 80 696 564 24 18 M16 32 4 631 628 70 10 110
11Y 571.25.630 732 528 80 696 564 24 18 M16 32 4 631 629 70 10 110
12 571.30.710 812 608 80 776 644 24 18 M16 32 4 711 708 70 10 120
12Y 571.25.710 812 608 80 776 644 24 18 M16 32 4 711 709 70 10 120
13 571.40.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 220
13Y 571.30.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 220
14 571.40.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 240
14Y 571.30.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 240
15 571.40.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 270
15Y 571.30.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 270
16 571.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 300
16Y 571.30.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 300
17 571.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1252 1248 100 10 420
17Y 571.35.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1251 1248 100 10 420
18 571.45.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1402 1398 100 10 480
18Y 571.35.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1401 1398 100 10 480
19 571.45.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1602 1598 100 10 550
19Y 571.35.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1601 1598 100 10 550
20 571.45.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1802 1798 100 10 610
20Y 571.35.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1801 1798 100 10 610
21 571.60.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2002 1998 132 12 1100
21Y 571.40.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2001 1998 132 12 1100
22 571.60.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2242 2238 132 12 1250
22Y 571.40.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2241 2238 132 12 1250
23 571.60.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2502 2498 132 12 1400
23Y 571.40.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2501 2498 132 12 1400
24 571.60.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 1600
24Y 571.40.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 1600
25 571.75.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 2800
25Y 571.50.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 2800

o External gear
DL
mm
Dimensions Mounting Dimensions Structural Dimension Gear data Gear circumferential force weight
kg
D
mm
d
mm
H
mm
D1
mm
D2
mm
n mm dm
mm
L
mm
n1
mm
D3
mm
d1
mm
H1
mm
h
mm
b
mm
x M
mm
De
mm
z Normalizing
Z104N
Quenching
T104N
1 011.20.200 280 120 60 248 152 12 16 M14 28 2 201 199 50 10 40 0 3 300 98     20
2 011.20.224 304 144 60 272 176 12 16 M14 28 2 225 223 50 10 40 0 3 321 105     22
3 011.20.250 330 170 60 298 202 18 16 M14 28 2 251 249 50 10 40 0 4 352 86     24
4 011.20.280 360 200 60 328 232 18 16 M14 28 2 281 279 50 10 40 0 4 384 94     27
5 011.25.315 408 222 70 372 258 20 18 M16 32 2 316 314 60 10 50 0 5 435 85 2.9 4.4 40
6 011.25.355 448 262 70 412 298 20 18 M16 32 2 356 354 60 10 50 0 5 475 93 2.9 4.4 45
7 011.25.400 493 307 70 457 343 20 18 M16 32 2 401 399 60 10 50 0 6 528 86 3.5 5.3 55
8 011.25.450 543 357 70 507 393 20 18 M16 32 2 451 449 60 10 50 0 6 576 94 3.5 5.3 63
9 011.30.500 602 398 80 566 434 20 18 M16 32 4 501 498 70 10 60 0.5 5 629 123 3.7 5.2 85
012.30.500 6 628.8 102 4.5 6.2
9Y 011.25.500 602 398 80 566 434 20 18 M16 32 4 501 499 70 10 60 0.5 5 629 123 3.7 5.2 85
012.25.500 6 628.8 102 4.5 6.2
10 011.30.560 662 458 80 626 494 20 18 M16 32 4 561 558 70 10 60 0.5 5 689 135 3.7 5.2 95
012.30.560 6 688.8 112 4.5 6.2
10Y 011.25.560 662 458 80 626 494 20 18 M16 32 4 561 559 70 10 60 0.5 5 689 135 3.7 5.2 95
012.25. 560 6 688.8 112 4.5 6.2
11 011.30.630 732 528 80 696 564 24 18 M16 32 4 631 628 70 10 60 0.5 6 772.8 126 4.5 6.2 110
012.30.630 8 774.4 94 6 8.3
11Y 011.25.630 732 528 80 696 564 24 18 M16 32 4 631 629 70 10 60 0.5 6 772.8 126 4.5 6.2 110
012.25.630 8 774.4 94 6 8.2
12 011.30.710 812 608 80 776 644 24 18 M16 32 4 711 708 70 10 60 0.5 6 850.8 139 4.5 6.2 120
012.30.710 8 854.4 104 6 8.3
12Y 011.25.710 812 608 80 776 644 24 18 M16 32 4 711 709 70 10 60 0.5 6 850.8 139 4.5 6.2 120
012.25.710 8 854.4 104 6 8.9
13 011.40.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 966.4 118 8 11.1 220
012.40.800 10 968 94 10 14
13Y 011.30.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 966.4 118 8 11.1 220
012.30.800 10 968 94 10 14.1
14 011.40.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 1062.4 130 8 11.1 240
012.40.900 10 1068 104 10 14
14Y 011.30.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 1062.4 130 8 11.1 240
012.30.900 10 1068 104 10 14
15 011.40.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 1188 116 10 14 270
012.40.1000 12 1185.6 96 12 16.7
15Y 011.30.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 1188 116 10 14 270
012.30.1000 12 1185.6 96 12 16.7
16 011.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 1298 127 10 14 300
012.40.1120 12 1305.6 106 12 16.7
16Y 011.30.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 1298 127 10 14 300
012.30.1120 12 1305.6 106 12 16.7
17 011.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1252 1248 100 10 90 0.5 12 1449.6 118 13.5 18.8 420
012.45.1250 14 1453.2 101 15.8 21.9
17Y 011.35.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1251 1248 100 10 90 0.5 12 1449.6 118 13.5 18.8 420
012.35.1250 14 1453.2 101 15.8 21.9
18 011.45.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1402 1398 100 10 90 0.5 12 1605.6 131 13.5 18.8 480
012.45.1400 14 1607.2 112 15.5 21.9
18Y 011.35.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1401 1398 100 10 90 0.5 12 1605.6 131 13.5 18.8 480
012.35.1400 14 1607.2 112 15.8 21.9
19 011.45.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1602 1598 100 10 90 0.5 14 1817.2 127 15.8 21.9 550
012.45.1600 16 1820.8 111 18.1 25
19Y 011.35.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1601 1598 100 10 90 0.5 14 1817.2 127 15.8 21.9 550
012.35.1600 16 1820.8 111 18.1 25
20 011.45.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1802 1798 100 10 90 0.5 14 2013.2 141 15.8 21.9 610
012.45.1800 16 2012.8 123 18.1 25
20Y 011.35.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1801 1798 100 10 90 0.5 14 2013.2 141 15.8 21.9 610
012.35.1800 16 2012.8 123 18.1 25
21 011.60.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2002 1998 132 12 120 0.5 16 2268.8 139 24.1 33.3 1100
012.60.2000 18 2264.4 123 27.1 37.5
21Y 011.40.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2001 1998 132 12 120 0.5 16 2268.8 139 24.1 33.3 1100
012.40.2000 18 2264.4 123 27.1 37.5
22 011.60.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2242 2238 132 12 120 0.5 16 2492.8 153 24.1 33.3 1250
012.60.2240 18 2498.4 136 27.1 37.5
22Y 011.40.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2241 2238 132 12 120 0.5 16 2492.8 153 24.1 33.3 1250
012.40.2240 18 2498.4 136 27.1 37.5
23 011.60.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2502 2498 132 12 120 0.5 18 2768.4 151 27.1 37.5 1400
012.60.2500 20 2776 136 30.1 41.8
23Y 011.40.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2501 2498 132 12 120 0.5 18 2768.4 151 27.1 37.5 1400
012.40.2500 20 2776 136 30.1 41.8
24 011.60.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 3074.4 168 27.1 37.5 1600
012.60.2800 20 3076 151 30.1 41.8
24Y 011.40.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 3074.4 168 27.1 37.5 1600
012.40.2800 20 3076 151 30.1 41.8
25 011.75.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 3476 171 37.7 52.2 2800
012.75.3150 22 3471.6 155 41.5 57.4
25Y 011.50.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 3476 171 37.7 52.2 2800
012.50.3150 22 3471.6 155 41.5 57.4

o Internal gear
DL
mm
Dimensions Mounting Dimensions Structural Dimension Gear data Gear circumferential force Weight
(kg)
D
mm
d
mm
H
mm
D 1
mm
D2
mm
n mm dm
mm
L
mm
n1
mm
D3
mm
d1
mm
H1
mm
h
mm
b
mm
x M
mm
De
mm
z Normalizing
Z104N
Quenching
T104N
1 013.25.315 408 222 70 372 258 20 18 M16 32 2 316 314 60 10 50 0 5 190 40 2.9 4.4 38
2 013.25.355 448 262 70 412 298 20 18 M16 32 2 356 354 60 10 50 0 5 235 49 2.9 4.4 43
3 013.25.400 493 307 70 457 343 20 18 M16 32 2 401 399 60 10 50 0 6 276 48 3.5 5.3 53
4 013.25.450 543 357 70 507 393 20 18 M16 32 2 451 449 60 10 50 0 6 324 56 3.5 5.3 61
5 013.30.500 602 398 80 566 434 20 18 M16 32 4 501 498 70 10 60 0.5 5 367 74 3.7 5.2 85
014.30.500 6 368.4 62 4.5 6.2
5Y 013.25.500 602 398 80 566 434 20 18 M16 32 4 501 499 70 10 60 0.5 5 367 74 3.7 5.2 85
014.25.500 6 368.4 62 4.5 6.2
6 013.30.560 662 458 80 626 494 20 18 M16 32 4 561 558 70 10 60 0.5 5 427 86 3.7 5.2 95
014.30.560 6 428.4 72 4.5 6.2
6Y 013.25.560 662 458 80 626 494 20 18 M16 32 4 561 559 70 10 60 0.5 5 427 86 3.7 5.2 95
014.25.560 6 428.4 72 4.5 6.2
7 013.30.630 732 528 80 696 564 24 18 M16 32 4 631 628 70 10 60 0.5 6 494.4 83 4.5 6.2 110
014.30.630 8 491.2 62 6 8.3
7Y 013.25.630 732 528 80 696 564 24 18 M16 32 4 631 629 70 10 60 0.5 6 494.4 83 4.5 6.2 110
014.25.630 8 491.2 62 6 8.2
8 013.30.710 812 608 80 776 644 24 18 M16 32 4 711 708 70 10 60 0.5 6 572.4 96 4.5 6.2 120
014.30.710 8 571.2 72 6 8.3
8Y 013.25.710 812 608 80 776 644 24 18 M16 32 4 711 709 70 10 60 0.5 6 572.4 96 4.5 6.2 120
014.25.710 8 571.2 72 6 8.9
9 013.40.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 635.2 80 8 11.1 220
014.40.800 10 634 64 10 14
9Y 013.30.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 635.2 80 8 11.1 220
014.30.800 10 634 64 10 14.1
10 013.40.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 739.2 93 8 11.1 240
014.40.900 10 734 74 10 14
10Y 013.30.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 739.2 93 8 11.1 240
014.30.900 10 734 74 10 14
11 013.40.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 824 83 10 14 270
014.40.1000 12 820.8 69 12 16.7
11Y 013.30.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 824 83 10 14 270
014.30.1000 12 820.8 69 12 16.7
12 013.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 944 95 10 14 300
014.40.1120 12 940.8 79 12 16.7
12Y 013.30.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 944 95 10 14 300
014.30.1120 12 940.8 79 12 16.7
13 013.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1252 1248 100 10 90 0.5 12 1049 88 13.5 18.8 420
014.45.1250 14 1042 75 15.8 21.9
13Y 013.35.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1251 1248 100 10 90 0.5 12 1049 88 13.5 18.8 420
014.35.1250 14 1042 75 15.8 21.9
14 013.45.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1402 1398 100 10 90 0.5 12 1193 100 13.5 18.8 480
014.45.1400 14 1196 86 15.5 21.9
14Y 013.35.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1401 1398 100 10 90 0.5 12 1193 100 13.5 18.8 480
014.35.1400 14 1196 86 15.8 21.9
15 013.45.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1602 1598 100 10 90 0.5 14 1392 100 15.8 21.9 550
014.45.1600 16 1382 87 18.1 25
15Y 013.35.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1601 1598 100 10 90 0.5 14 1392 100 15.8 21.9 550
014.35.1600 16 1382 87 18.1 25
16 013.45.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1802 1798 100 10 90 0.5 14 1574 113 15.8 21.9 610
014.45.1800 16 1574 99 18.1 25
16Y 013.35.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1801 1798 100 10 90 0.5 14 1574 113 15.8 21.9 610
014.35.1800 16 1574 99 18.1 25
17 013.60.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2002 1998 132 12 120 0.5 16 1734 109 24.1 33.3 1100
014.60.2000 18 1735 97 27.1 37.5
17Y 013.40.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2001 1998 132 12 120 0.5 16 1734 109 24.1 33.3 1100
014.40.2000 18 1735 97 27.1 37.5
18 013.60.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2242 2238 132 12 120 0.5 16 1990 125 24.1 33.3 1250
014.60.2240 18 1987 111 27.1 37.5
18Y 013.40.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2241 2238 132 12 120 0.5 16 1990 125 24.1 33.3 1250
014.40.2240 18 1987 111 27.1 37.5
19 013.60.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2502 2498 132 12 120 0.5 18 2239 125 27.1 37.5 1400
014.60.2500 20 2228 112 30.1 41.8
19Y 013.40.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2501 2498 132 12 120 0.5 18 2239 125 27.1 37.5 1400
014.40.2500 20 2228 112 30.1 41.8
20 013.60.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 2527 141 27.1 37.5 1600
014.60.2800 20 2528 127 30.1 41.8
20Y 013.40.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 2527 141 27.1 37.5 1600
014.40.2800 20 2528 127 30.1 41.8
21 013.75.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 2828 142 37.7 52.2 2800
014.75.3150 22 2825 129 41.5 57.4
21Y 013.50.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 2828 142 37.7 52.2 2800
014.50.3150 22 2825 129 41.5 57.4

 

Single row cross roller slewing bearing
Composed of 2 or 3 rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.

Double row ball slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc

 
Three row roller slewing bearing
Three row roller bearing able to bear all kinds of loads at the same time, it is the largest 1 of the 4 structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.
 

Type • Single row 4 point contact ball slewing bearing 
• Single row crossed cylindrical roller slewing bearings
• Double row ball slewing bearings
•Double row Roller/ball combination slewing bearing
•Three-Row Roller Slew Ring Bearing
Rolling elements Steel ball / Cylinder Roller
Rolling elements Material GCr5/GCr15SiMn/Customized
Bearing Material 50Mn/42CrMo/42CrMo4V /Customized
Cage Material Nylon/ steel /copper
Structure taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators
Outer diameter 50-10000mm
Bore size 50-10000mm
Mounting hole Through hole/Tapped hole
Raceway hardness 55-62HRC
Inner and outer ring 
modulation hardness
229-269HB/Customized
Gear type No gear ,Internal gear , External gear.
Embellish grease EP2 lithium lubricating grease
Certificate ABS.BV,DNV,ISO9001,GL,3.1,3.2
Application area Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator
Brand Name LYMC
Place of Origin HangZhou ZheJiang
Warranty 12 months
Payment term T/T is our first choice

Packing details

1,Filling with anti-rust oil
2.Corved with Plastic paper
3.Corved with kraft paper 
4.Corved with Blue tie 
5.Put in wooden box

 


Product Process

 

SLEWING BEARING RINGS

Rings are mainly made of 50Mn carbon steel or alloy steels such as 42CrMo4 and the choice of material depends on the required mechanical properties. Alloy steels are often used for heavy-duty applications. Their structural characteristics mean that heat treatments are more effective and greater surface hardness can be obtained than with carbon steels. Stainless steels such as AISI420 or AISI440C can be used for applications where corrosion resistance is required.

RACEWAYS

The raceways are heat-treated by induction in order to achieve a maximum surface hardness of 62 HRC for carbon or alloy steels, or 58 HRC for stainless steels. The hardening depth can vary depending on the type of steel. Hardening treatment is essential to allow the slewing coupling to support the heavy-duty loads it is exposed to in its intended application.

ROTATING ELEMENTS

The rotating elements used in slewing bearings may be balls or cylindrical rollers; both are typically made of 100Cr6 steel but other materials such as ceramic (zirconium oxide ZrO2 or silicon nitride Si3N4) or stainless steel (AISI440C) can be used. Rolling elements with different materials, sizes and precision grades are selected depending on the desired results.

CAGES OR SPACERS

Slewing bearing clearance plays a crucial role and is defined and optimised according to the application and performance to be achieved.
Cages or spacers made of different materials can be used to separate rolling elements, balls or rollers, depending on the loads and speeds required by the specific application.

PROTECTIONS

Special sliding seals are fitted between the inner and outer ring to protect the slewing bearing against the ingress of debris, dust or water particles that could affect its operation. The material used for seals is typically NBR rubber, but different materials can be chosen for specific applications.

LUBRICANT

The lubricant is another very important factor to ensure effective operation of the base bearing. The type of lubricant, quantity, quality, lubrication intervals, number and position of greasing points are determined according to the performance required of the slewing bearing and any specific customer requirements.

GEARED RINGS

Slewing bearing rings can be spur-gear or, more rarely, helical-gear. The gear module is sized and selected according to the application requirements.
Typically, the gearing is soft, i.e. untreated – the maximum hardness of untreated gears is 30 HRC for 42CrMo4. When service conditions require it, the gear surface can be induction-hardened to achieve a surface hardness of 60 HRC. Gear hardening is required when at least 1 of the following variables must be satisfied:

  • high rolling torque
  •  
  • high rotating speed
  •  
  • unfavourable environmental conditions, presence of CHINAMFG elements
  •  
  • maximum tooth lifetime

The experience gained by CHINAMFG Bearing allows us to design slewing bearings to specific customer needs. You can get the right product for your machines or systems without having to compromise with an off-the-shelf product.

Customer Feedback:

1

2

3

Application:

– Excavators – Drilling rigs – Mining Equipments – Cranes   -Offshore Equipments  – Vehicles  – Machine Tools  – Wind Turbines

About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.

Our Service:

FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service. 

 

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Standard or Nonstandard: Standard
Feature: High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Straight Raceway
Material: 50mn/42CrMo
Customization:
Available

|

How do slewing rings contribute to precise and controlled motion in machinery?

Slewing rings play a crucial role in enabling precise and controlled motion in machinery. Their design and functionality contribute to achieving accurate positioning, smooth rotation, and controlled movement. Here’s a detailed explanation of how slewing rings contribute to precise and controlled motion:

  • Precision Engineering: Slewing rings are meticulously engineered to provide high precision in motion control. The manufacturing processes involve tight tolerances and precise machining to ensure accurate dimensions and alignment of the rolling elements and raceways. This precision engineering minimizes any deviations or errors in motion, allowing for precise positioning and controlled movement.
  • Low Friction and Smooth Rotation: Slewing rings are designed to minimize friction and enable smooth rotation. The rolling elements, whether balls or rollers, are precisely positioned and guided within the raceways of the slewing ring. This design ensures that the rolling elements make contact with the raceways at specific angles, reducing friction during rotation. The low-friction characteristics allow for smooth and controlled motion, enabling precise positioning without undue resistance or jerky movements.
  • Integrated Gear Mechanism: Many slewing rings are equipped with an integrated gear mechanism. The gear teeth on the inner or outer ring of the slewing ring engage with external gears or pinions, providing a means to transmit torque and control rotational motion. The gear mechanism allows for precise and controlled movement, enabling operators or automated systems to achieve accurate positioning and controlled rotation at desired speeds.
  • Backlash Control: Backlash refers to the slight play or clearance between mating gears or components. Slewing rings are designed to minimize backlash, particularly in applications that require precise motion control. By reducing or eliminating backlash, slewing rings ensure that there is minimal lost motion or error when initiating rotational movement or changing direction. This feature contributes to improved accuracy and controlled motion.
  • Stiffness and Rigidity: Slewing rings are designed to provide high stiffness and rigidity, minimizing deflection or deformation during operation. This characteristic is especially important in applications where precise and controlled motion is required. The high stiffness of slewing rings ensures that the applied forces and torques are efficiently transmitted, allowing for accurate positioning and controlled motion without significant distortion or flexing.
  • Positioning Sensors and Feedback Systems: In conjunction with slewing rings, machinery often incorporates positioning sensors and feedback systems. These sensors and systems provide real-time data on the position, speed, and rotation of the slewing ring. By continuously monitoring and adjusting the motion based on the feedback, precise and controlled movement can be achieved, enabling accurate positioning and motion control.

Overall, slewing rings contribute to precise and controlled motion in machinery through their precision engineering, low friction, integrated gear mechanisms, backlash control, stiffness, and compatibility with positioning sensors and feedback systems. These features ensure accurate positioning, smooth rotation, and controlled movement, making slewing rings essential components for applications that require precise motion control in various industries such as construction, material handling, robotics, and manufacturing.

What are the signs that indicate a need for slewing ring replacement or maintenance, and how can they be diagnosed?

When it comes to slewing rings, certain signs indicate the need for replacement or maintenance to ensure optimal performance and prevent potential failures. Here’s a detailed explanation of the signs that indicate a need for slewing ring replacement or maintenance, along with methods for diagnosis:

  • Unusual Noise: Unusual noises, such as grinding, clicking, or squealing sounds, during the operation of rotating systems may indicate a problem with the slewing ring. These noises can be caused by worn-out or damaged rolling elements, insufficient lubrication, misalignment, or other issues. Diagnosis involves conducting a thorough inspection of the slewing ring and its components to identify the source of the noise and determine the appropriate course of action.
  • Abnormal Vibration: Excessive vibration during the operation of rotating systems can be a warning sign of a faulty slewing ring. It may indicate misalignment, imbalanced loads, damaged rolling elements, or worn-out bearings. Vibration analysis techniques, such as using vibration sensors or analyzers, can help diagnose the source and severity of the vibration. Based on the analysis results, appropriate maintenance or replacement actions can be taken.
  • Irregular Movement: Any irregular movement or jerking motion of the rotating system can be an indication of a problem with the slewing ring. It may be caused by damaged or worn-out teeth on the slewing ring, misalignment, or inadequate lubrication. Visual observation of the system’s movement during operation can help identify any irregularities. Additionally, conducting a detailed inspection of the slewing ring and its teeth can provide further insight into the issue.
  • Increased Friction: If there is a noticeable increase in friction or resistance during the rotation of the system, it could be a sign of a problem with the slewing ring. This may be due to insufficient or contaminated lubrication, damaged rolling elements, or misalignment. Diagnosis involves checking the lubrication levels and quality, inspecting the rolling elements for signs of damage, and verifying the alignment of the slewing ring.
  • Uneven or Excessive Wear: Visual inspection of the slewing ring can reveal signs of uneven or excessive wear. This can manifest as worn-out or pitted rolling elements, damaged or missing teeth, or abnormal wear patterns on the raceways. Regular inspections and comparing the current condition with the manufacturer’s specifications or previous inspection records can help diagnose the level of wear and determine if maintenance or replacement is necessary.
  • Leakage or Contamination: Leakage of lubricant or the presence of contaminants, such as dirt, water, or debris, in the slewing ring assembly can be indicative of a problem. It may lead to inadequate lubrication, accelerated wear, or corrosion. Visual inspection of the slewing ring and any associated seals or gaskets can help identify any signs of leakage or contamination. Addressing the source of the leakage and ensuring proper sealing is essential to maintain the integrity and performance of the slewing ring.
  • Reduced Load-Carrying Capacity: If the rotating system experiences difficulty in handling its intended loads or shows signs of decreased load-carrying capacity, it may indicate an issue with the slewing ring. Factors such as worn-out rolling elements, damaged raceways, or misalignment can contribute to the reduction in load-carrying capacity. Performance testing and comparing the system’s current capabilities with its original specifications can help diagnose any loss in load-carrying capacity.

In summary, signs that indicate a need for slewing ring replacement or maintenance include unusual noise, abnormal vibration, irregular movement, increased friction, uneven or excessive wear, leakage or contamination, and reduced load-carrying capacity. These signs can be diagnosed through visual inspections, vibration analysis, performance testing, and comparing the observed conditions with the manufacturer’s specifications. Early detection and timely maintenance or replacement of the slewing ring can prevent further damage, ensure safe operation, and extend the lifespan of the rotating system.

What is a slewing ring, and how is it used in mechanical systems?

A slewing ring, also known as a slewing bearing or turntable bearing, is a specialized type of rolling element bearing that enables rotational movement between two components. It consists of an inner ring, an outer ring, rolling elements (such as balls or rollers), and often a gear mechanism. Slewing rings are used in mechanical systems where there is a need for smooth and controlled rotation. Here’s a detailed explanation of what a slewing ring is and how it is used:

  • Structure and Components: A slewing ring typically has a large diameter compared to its thickness, allowing it to support axial, radial, and moment loads. The inner and outer rings have raceways that the rolling elements move along. The rolling elements, which can be balls or rollers, distribute the load and facilitate smooth rotation. In some cases, a gear mechanism is integrated into the slewing ring, allowing it to act as a rotational drive system.
  • Rotational Movement: The primary function of a slewing ring is to enable rotational movement between two components. It provides a stable and low-friction interface that allows one component to rotate relative to the other. The rolling elements within the raceways minimize friction and distribute the load evenly, resulting in smooth and controlled rotation. Slewing rings can support both continuous rotation and intermittent or oscillating movement, depending on the application requirements.
  • Load Support: Slewing rings are designed to support various types of loads. They can handle axial loads, which are forces acting parallel to the axis of rotation, as well as radial loads, which are forces acting perpendicular to the axis of rotation. Additionally, slewing rings can accommodate moment loads, which are a combination of axial and radial loads that create bending or twisting forces. The load-carrying capacity of a slewing ring depends on factors such as its size, design, and choice of rolling elements.
  • Applications: Slewing rings find applications in a wide range of mechanical systems across different industries. Some common uses include:
  • Construction and Cranes: Slewing rings are extensively used in construction machinery, cranes, and mobile equipment. They enable 360-degree rotation of the boom or jib, allowing for efficient material handling and positioning.
  • Wind Turbines: Slewing rings are crucial components in wind turbine systems. They support the rotor, allowing it to rotate according to wind direction, and provide a connection between the rotor and the nacelle, enabling yaw movement.
  • Industrial Equipment: Slewing rings are utilized in various industrial equipment, including indexing tables, turntables, robotic arms, and packaging machinery. They facilitate precise and controlled rotation in these applications.
  • Transportation and Automotive: Slewing rings are employed in transportation and automotive applications, such as vehicle cranes, aerial platforms, and rotating platforms for heavy-duty vehicles. They enable safe and smooth rotation in these specialized systems.
  • Medical and Rehabilitation Equipment: Slewing rings are used in medical and rehabilitation equipment, such as patient lifts and adjustable beds. They allow for smooth and controlled movement, aiding in patient care and mobility assistance.

In summary, a slewing ring is a specialized bearing that enables controlled rotational movement between components in mechanical systems. Its ability to support various loads, provide smooth rotation, and accommodate different applications makes it a valuable component in a wide range of industries.

China high quality OEM Turntable Bearing 10-20 0411/0-02013 Slewing Ring for Ladle Turret  China high quality OEM Turntable Bearing 10-20 0411/0-02013 Slewing Ring for Ladle Turret
editor by Dream 2024-05-13

China high quality OEM Turntable Bearing 10-20 0411/0-02013 Slewing Ring for Ladle Turret

Product Description

OEM Turntable Bearing 10-20 571/0-57113 Slewing Ring For Ladle Turret

Four-point contact ball slewing turntable bearings 
consist of 2 ring seats. Compact structure, light weight, steel ball and arc track contact at 4 points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.

 

No Non gear Dimensions Mounting Dimensions Structural Dimensions Weight
(kg)
DL
mm
D
mm
d
mm
H
mm
D1
mm
D2
mm
n mm dm
mm
L
mm
n1
mm
D3
mm
d1
mm
H1
mm
h
mm
1 571.20.200 280 120 60 248 152 12 16 M14 28 2 201 199 50 10 17
2 571.20.224 304 144 60 272 176 12 16 M14 28 2 225 223 50 10 20
3 571.20.250 330 170 60 298 202 18 16 M14 28 2 251 249 50 10 22
4 571.20.280 360 200 60 328 232 18 16 M14 28 2 281 279 50 10 24
5 571.25.315 408 222 70 372 258 20 18 M16 32 2 316 314 60 10 37
6 571.25.355 448 262 70 412 298 20 18 M16 32 2 356 354 60 10 45
7 571.25.400 493 307 70 457 343 20 18 M16 32 2 401 399 60 10 50
8 571.25.450 543 357 70 507 393 20 18 M16 32 2 451 449 60 10 55
9 571.30.500 602 398 80 566 434 20 18 M16 32 4 501 498 70 10 85
9Y 571.25.500 602 398 80 566 434 20 18 M16 32 4 501 499 70 10 85
10 571.30.560 662 458 80 626 494 20 18 M16 32 4 561 558 70 10 95
10Y 571.25.560 662 458 80 626 494 20 18 M16 32 4 561 559 70 10 95
11 571.30.630 732 528 80 696 564 24 18 M16 32 4 631 628 70 10 110
11Y 571.25.630 732 528 80 696 564 24 18 M16 32 4 631 629 70 10 110
12 571.30.710 812 608 80 776 644 24 18 M16 32 4 711 708 70 10 120
12Y 571.25.710 812 608 80 776 644 24 18 M16 32 4 711 709 70 10 120
13 571.40.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 220
13Y 571.30.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 220
14 571.40.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 240
14Y 571.30.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 240
15 571.40.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 270
15Y 571.30.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 270
16 571.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 300
16Y 571.30.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 300
17 571.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1252 1248 100 10 420
17Y 571.35.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1251 1248 100 10 420
18 571.45.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1402 1398 100 10 480
18Y 571.35.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1401 1398 100 10 480
19 571.45.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1602 1598 100 10 550
19Y 571.35.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1601 1598 100 10 550
20 571.45.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1802 1798 100 10 610
20Y 571.35.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1801 1798 100 10 610
21 571.60.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2002 1998 132 12 1100
21Y 571.40.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2001 1998 132 12 1100
22 571.60.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2242 2238 132 12 1250
22Y 571.40.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2241 2238 132 12 1250
23 571.60.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2502 2498 132 12 1400
23Y 571.40.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2501 2498 132 12 1400
24 571.60.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 1600
24Y 571.40.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 1600
25 571.75.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 2800
25Y 571.50.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 2800

o External gear
DL
mm
Dimensions Mounting Dimensions Structural Dimension Gear data Gear circumferential force weight
kg
D
mm
d
mm
H
mm
D1
mm
D2
mm
n mm dm
mm
L
mm
n1
mm
D3
mm
d1
mm
H1
mm
h
mm
b
mm
x M
mm
De
mm
z Normalizing
Z104N
Quenching
T104N
1 011.20.200 280 120 60 248 152 12 16 M14 28 2 201 199 50 10 40 0 3 300 98     20
2 011.20.224 304 144 60 272 176 12 16 M14 28 2 225 223 50 10 40 0 3 321 105     22
3 011.20.250 330 170 60 298 202 18 16 M14 28 2 251 249 50 10 40 0 4 352 86     24
4 011.20.280 360 200 60 328 232 18 16 M14 28 2 281 279 50 10 40 0 4 384 94     27
5 011.25.315 408 222 70 372 258 20 18 M16 32 2 316 314 60 10 50 0 5 435 85 2.9 4.4 40
6 011.25.355 448 262 70 412 298 20 18 M16 32 2 356 354 60 10 50 0 5 475 93 2.9 4.4 45
7 011.25.400 493 307 70 457 343 20 18 M16 32 2 401 399 60 10 50 0 6 528 86 3.5 5.3 55
8 011.25.450 543 357 70 507 393 20 18 M16 32 2 451 449 60 10 50 0 6 576 94 3.5 5.3 63
9 011.30.500 602 398 80 566 434 20 18 M16 32 4 501 498 70 10 60 0.5 5 629 123 3.7 5.2 85
012.30.500 6 628.8 102 4.5 6.2
9Y 011.25.500 602 398 80 566 434 20 18 M16 32 4 501 499 70 10 60 0.5 5 629 123 3.7 5.2 85
012.25.500 6 628.8 102 4.5 6.2
10 011.30.560 662 458 80 626 494 20 18 M16 32 4 561 558 70 10 60 0.5 5 689 135 3.7 5.2 95
012.30.560 6 688.8 112 4.5 6.2
10Y 011.25.560 662 458 80 626 494 20 18 M16 32 4 561 559 70 10 60 0.5 5 689 135 3.7 5.2 95
012.25. 560 6 688.8 112 4.5 6.2
11 011.30.630 732 528 80 696 564 24 18 M16 32 4 631 628 70 10 60 0.5 6 772.8 126 4.5 6.2 110
012.30.630 8 774.4 94 6 8.3
11Y 011.25.630 732 528 80 696 564 24 18 M16 32 4 631 629 70 10 60 0.5 6 772.8 126 4.5 6.2 110
012.25.630 8 774.4 94 6 8.2
12 011.30.710 812 608 80 776 644 24 18 M16 32 4 711 708 70 10 60 0.5 6 850.8 139 4.5 6.2 120
012.30.710 8 854.4 104 6 8.3
12Y 011.25.710 812 608 80 776 644 24 18 M16 32 4 711 709 70 10 60 0.5 6 850.8 139 4.5 6.2 120
012.25.710 8 854.4 104 6 8.9
13 011.40.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 966.4 118 8 11.1 220
012.40.800 10 968 94 10 14
13Y 011.30.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 966.4 118 8 11.1 220
012.30.800 10 968 94 10 14.1
14 011.40.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 1062.4 130 8 11.1 240
012.40.900 10 1068 104 10 14
14Y 011.30.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 1062.4 130 8 11.1 240
012.30.900 10 1068 104 10 14
15 011.40.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 1188 116 10 14 270
012.40.1000 12 1185.6 96 12 16.7
15Y 011.30.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 1188 116 10 14 270
012.30.1000 12 1185.6 96 12 16.7
16 011.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 1298 127 10 14 300
012.40.1120 12 1305.6 106 12 16.7
16Y 011.30.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 1298 127 10 14 300
012.30.1120 12 1305.6 106 12 16.7
17 011.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1252 1248 100 10 90 0.5 12 1449.6 118 13.5 18.8 420
012.45.1250 14 1453.2 101 15.8 21.9
17Y 011.35.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1251 1248 100 10 90 0.5 12 1449.6 118 13.5 18.8 420
012.35.1250 14 1453.2 101 15.8 21.9
18 011.45.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1402 1398 100 10 90 0.5 12 1605.6 131 13.5 18.8 480
012.45.1400 14 1607.2 112 15.5 21.9
18Y 011.35.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1401 1398 100 10 90 0.5 12 1605.6 131 13.5 18.8 480
012.35.1400 14 1607.2 112 15.8 21.9
19 011.45.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1602 1598 100 10 90 0.5 14 1817.2 127 15.8 21.9 550
012.45.1600 16 1820.8 111 18.1 25
19Y 011.35.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1601 1598 100 10 90 0.5 14 1817.2 127 15.8 21.9 550
012.35.1600 16 1820.8 111 18.1 25
20 011.45.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1802 1798 100 10 90 0.5 14 2013.2 141 15.8 21.9 610
012.45.1800 16 2012.8 123 18.1 25
20Y 011.35.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1801 1798 100 10 90 0.5 14 2013.2 141 15.8 21.9 610
012.35.1800 16 2012.8 123 18.1 25
21 011.60.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2002 1998 132 12 120 0.5 16 2268.8 139 24.1 33.3 1100
012.60.2000 18 2264.4 123 27.1 37.5
21Y 011.40.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2001 1998 132 12 120 0.5 16 2268.8 139 24.1 33.3 1100
012.40.2000 18 2264.4 123 27.1 37.5
22 011.60.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2242 2238 132 12 120 0.5 16 2492.8 153 24.1 33.3 1250
012.60.2240 18 2498.4 136 27.1 37.5
22Y 011.40.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2241 2238 132 12 120 0.5 16 2492.8 153 24.1 33.3 1250
012.40.2240 18 2498.4 136 27.1 37.5
23 011.60.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2502 2498 132 12 120 0.5 18 2768.4 151 27.1 37.5 1400
012.60.2500 20 2776 136 30.1 41.8
23Y 011.40.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2501 2498 132 12 120 0.5 18 2768.4 151 27.1 37.5 1400
012.40.2500 20 2776 136 30.1 41.8
24 011.60.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 3074.4 168 27.1 37.5 1600
012.60.2800 20 3076 151 30.1 41.8
24Y 011.40.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 3074.4 168 27.1 37.5 1600
012.40.2800 20 3076 151 30.1 41.8
25 011.75.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 3476 171 37.7 52.2 2800
012.75.3150 22 3471.6 155 41.5 57.4
25Y 011.50.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 3476 171 37.7 52.2 2800
012.50.3150 22 3471.6 155 41.5 57.4

o Internal gear
DL
mm
Dimensions Mounting Dimensions Structural Dimension Gear data Gear circumferential force Weight
(kg)
D
mm
d
mm
H
mm
D 1
mm
D2
mm
n mm dm
mm
L
mm
n1
mm
D3
mm
d1
mm
H1
mm
h
mm
b
mm
x M
mm
De
mm
z Normalizing
Z104N
Quenching
T104N
1 013.25.315 408 222 70 372 258 20 18 M16 32 2 316 314 60 10 50 0 5 190 40 2.9 4.4 38
2 013.25.355 448 262 70 412 298 20 18 M16 32 2 356 354 60 10 50 0 5 235 49 2.9 4.4 43
3 013.25.400 493 307 70 457 343 20 18 M16 32 2 401 399 60 10 50 0 6 276 48 3.5 5.3 53
4 013.25.450 543 357 70 507 393 20 18 M16 32 2 451 449 60 10 50 0 6 324 56 3.5 5.3 61
5 013.30.500 602 398 80 566 434 20 18 M16 32 4 501 498 70 10 60 0.5 5 367 74 3.7 5.2 85
014.30.500 6 368.4 62 4.5 6.2
5Y 013.25.500 602 398 80 566 434 20 18 M16 32 4 501 499 70 10 60 0.5 5 367 74 3.7 5.2 85
014.25.500 6 368.4 62 4.5 6.2
6 013.30.560 662 458 80 626 494 20 18 M16 32 4 561 558 70 10 60 0.5 5 427 86 3.7 5.2 95
014.30.560 6 428.4 72 4.5 6.2
6Y 013.25.560 662 458 80 626 494 20 18 M16 32 4 561 559 70 10 60 0.5 5 427 86 3.7 5.2 95
014.25.560 6 428.4 72 4.5 6.2
7 013.30.630 732 528 80 696 564 24 18 M16 32 4 631 628 70 10 60 0.5 6 494.4 83 4.5 6.2 110
014.30.630 8 491.2 62 6 8.3
7Y 013.25.630 732 528 80 696 564 24 18 M16 32 4 631 629 70 10 60 0.5 6 494.4 83 4.5 6.2 110
014.25.630 8 491.2 62 6 8.2
8 013.30.710 812 608 80 776 644 24 18 M16 32 4 711 708 70 10 60 0.5 6 572.4 96 4.5 6.2 120
014.30.710 8 571.2 72 6 8.3
8Y 013.25.710 812 608 80 776 644 24 18 M16 32 4 711 709 70 10 60 0.5 6 572.4 96 4.5 6.2 120
014.25.710 8 571.2 72 6 8.9
9 013.40.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 635.2 80 8 11.1 220
014.40.800 10 634 64 10 14
9Y 013.30.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 0.5 8 635.2 80 8 11.1 220
014.30.800 10 634 64 10 14.1
10 013.40.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 739.2 93 8 11.1 240
014.40.900 10 734 74 10 14
10Y 013.30.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 0.5 8 739.2 93 8 11.1 240
014.30.900 10 734 74 10 14
11 013.40.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 824 83 10 14 270
014.40.1000 12 820.8 69 12 16.7
11Y 013.30.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 0.5 10 824 83 10 14 270
014.30.1000 12 820.8 69 12 16.7
12 013.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 944 95 10 14 300
014.40.1120 12 940.8 79 12 16.7
12Y 013.30.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 0.5 10 944 95 10 14 300
014.30.1120 12 940.8 79 12 16.7
13 013.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1252 1248 100 10 90 0.5 12 1049 88 13.5 18.8 420
014.45.1250 14 1042 75 15.8 21.9
13Y 013.35.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1251 1248 100 10 90 0.5 12 1049 88 13.5 18.8 420
014.35.1250 14 1042 75 15.8 21.9
14 013.45.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1402 1398 100 10 90 0.5 12 1193 100 13.5 18.8 480
014.45.1400 14 1196 86 15.5 21.9
14Y 013.35.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1401 1398 100 10 90 0.5 12 1193 100 13.5 18.8 480
014.35.1400 14 1196 86 15.8 21.9
15 013.45.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1602 1598 100 10 90 0.5 14 1392 100 15.8 21.9 550
014.45.1600 16 1382 87 18.1 25
15Y 013.35.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1601 1598 100 10 90 0.5 14 1392 100 15.8 21.9 550
014.35.1600 16 1382 87 18.1 25
16 013.45.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1802 1798 100 10 90 0.5 14 1574 113 15.8 21.9 610
014.45.1800 16 1574 99 18.1 25
16Y 013.35.1800 1940 1660 110 1887 1713 45 26 M24 48 5 1801 1798 100 10 90 0.5 14 1574 113 15.8 21.9 610
014.35.1800 16 1574 99 18.1 25
17 013.60.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2002 1998 132 12 120 0.5 16 1734 109 24.1 33.3 1100
014.60.2000 18 1735 97 27.1 37.5
17Y 013.40.2000 2178 1825 144 2110 1891 48 33 M30 60 8 2001 1998 132 12 120 0.5 16 1734 109 24.1 33.3 1100
014.40.2000 18 1735 97 27.1 37.5
18 013.60.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2242 2238 132 12 120 0.5 16 1990 125 24.1 33.3 1250
014.60.2240 18 1987 111 27.1 37.5
18Y 013.40.2240 2418 2065 144 2350 2131 48 33 M30 60 8 2241 2238 132 12 120 0.5 16 1990 125 24.1 33.3 1250
014.40.2240 18 1987 111 27.1 37.5
19 013.60.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2502 2498 132 12 120 0.5 18 2239 125 27.1 37.5 1400
014.60.2500 20 2228 112 30.1 41.8
19Y 013.40.2500 2678 2325 144 2610 2391 56 33 M30 60 8 2501 2498 132 12 120 0.5 18 2239 125 27.1 37.5 1400
014.40.2500 20 2228 112 30.1 41.8
20 013.60.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 2527 141 27.1 37.5 1600
014.60.2800 20 2528 127 30.1 41.8
20Y 013.40.2800 2978 2625 144 2910 2691 56 33 M30 60 8 2802 2798 132 12 120 0.5 18 2527 141 27.1 37.5 1600
014.40.2800 20 2528 127 30.1 41.8
21 013.75.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 2828 142 37.7 52.2 2800
014.75.3150 22 2825 129 41.5 57.4
21Y 013.50.3150 3376 2922 174 3286 3014 56 45 M42 84 8 3152 3147 162 12 150 0.5 20 2828 142 37.7 52.2 2800
014.50.3150 22 2825 129 41.5 57.4

 

Single row cross roller slewing bearing
Composed of 2 or 3 rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.

Double row ball slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc

 
Three row roller slewing bearing
Three row roller bearing able to bear all kinds of loads at the same time, it is the largest 1 of the 4 structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.
 

Type • Single row 4 point contact ball slewing bearing 
• Single row crossed cylindrical roller slewing bearings
• Double row ball slewing bearings
•Double row Roller/ball combination slewing bearing
•Three-Row Roller Slew Ring Bearing
Rolling elements Steel ball / Cylinder Roller
Rolling elements Material GCr5/GCr15SiMn/Customized
Bearing Material 50Mn/42CrMo/42CrMo4V /Customized
Cage Material Nylon/ steel /copper
Structure taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators
Outer diameter 50-10000mm
Bore size 50-10000mm
Mounting hole Through hole/Tapped hole
Raceway hardness 55-62HRC
Inner and outer ring 
modulation hardness
229-269HB/Customized
Gear type No gear ,Internal gear , External gear.
Embellish grease EP2 lithium lubricating grease
Certificate ABS.BV,DNV,ISO9001,GL,3.1,3.2
Application area Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator
Brand Name LYMC
Place of Origin HangZhou ZheJiang
Warranty 12 months
Payment term T/T is our first choice

Packing details

1,Filling with anti-rust oil
2.Corved with Plastic paper
3.Corved with kraft paper 
4.Corved with Blue tie 
5.Put in wooden box

 


Product Process

 

SLEWING BEARING RINGS

Rings are mainly made of 50Mn carbon steel or alloy steels such as 42CrMo4 and the choice of material depends on the required mechanical properties. Alloy steels are often used for heavy-duty applications. Their structural characteristics mean that heat treatments are more effective and greater surface hardness can be obtained than with carbon steels. Stainless steels such as AISI420 or AISI440C can be used for applications where corrosion resistance is required.

RACEWAYS

The raceways are heat-treated by induction in order to achieve a maximum surface hardness of 62 HRC for carbon or alloy steels, or 58 HRC for stainless steels. The hardening depth can vary depending on the type of steel. Hardening treatment is essential to allow the slewing coupling to support the heavy-duty loads it is exposed to in its intended application.

ROTATING ELEMENTS

The rotating elements used in slewing bearings may be balls or cylindrical rollers; both are typically made of 100Cr6 steel but other materials such as ceramic (zirconium oxide ZrO2 or silicon nitride Si3N4) or stainless steel (AISI440C) can be used. Rolling elements with different materials, sizes and precision grades are selected depending on the desired results.

CAGES OR SPACERS

Slewing bearing clearance plays a crucial role and is defined and optimised according to the application and performance to be achieved.
Cages or spacers made of different materials can be used to separate rolling elements, balls or rollers, depending on the loads and speeds required by the specific application.

PROTECTIONS

Special sliding seals are fitted between the inner and outer ring to protect the slewing bearing against the ingress of debris, dust or water particles that could affect its operation. The material used for seals is typically NBR rubber, but different materials can be chosen for specific applications.

LUBRICANT

The lubricant is another very important factor to ensure effective operation of the base bearing. The type of lubricant, quantity, quality, lubrication intervals, number and position of greasing points are determined according to the performance required of the slewing bearing and any specific customer requirements.

GEARED RINGS

Slewing bearing rings can be spur-gear or, more rarely, helical-gear. The gear module is sized and selected according to the application requirements.
Typically, the gearing is soft, i.e. untreated – the maximum hardness of untreated gears is 30 HRC for 42CrMo4. When service conditions require it, the gear surface can be induction-hardened to achieve a surface hardness of 60 HRC. Gear hardening is required when at least 1 of the following variables must be satisfied:

  • high rolling torque
  •  
  • high rotating speed
  •  
  • unfavourable environmental conditions, presence of CHINAMFG elements
  •  
  • maximum tooth lifetime

The experience gained by CHINAMFG Bearing allows us to design slewing bearings to specific customer needs. You can get the right product for your machines or systems without having to compromise with an off-the-shelf product.

Customer Feedback:

1

2

3

Application:

– Excavators – Drilling rigs – Mining Equipments – Cranes   -Offshore Equipments  – Vehicles  – Machine Tools  – Wind Turbines

About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.

Our Service:

FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service. 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Straight Raceway
Material: 50mn/42CrMo
Customization:
Available

|

Can you describe the factors to consider when selecting slewing rings for specific applications?

When selecting slewing rings for specific applications, several factors need to be considered to ensure optimal performance and reliability. Here’s a detailed description of the factors to consider:

  • Load Requirements: The load capacity of the slewing ring should match the anticipated loads in the application. Consider both the maximum static load (weight of the structure or equipment) and dynamic load (forces during operation). It is crucial to analyze the load distribution, including axial, radial, and moment loads, and select a slewing ring with sufficient load-carrying capacity to handle these loads.
  • Space Limitations: Evaluate the available space for the installation of the slewing ring. Consider the diameter, height, and width of the slewing ring to ensure it fits within the space constraints of the application. It is essential to consider both the external dimensions of the slewing ring and the required clearance for rotation.
  • Rotational Speed: Determine the required rotational speed of the slewing ring. Consider the application’s operating speed and any specific speed limitations. The slewing ring should be selected to accommodate the rotational speed requirements while maintaining smooth and efficient operation.
  • Environmental Conditions: Evaluate the operating environment of the application. Factors such as temperature, humidity, dust, water exposure, chemicals, and corrosive elements should be considered. Choose a slewing ring with appropriate sealing systems, corrosion-resistant materials, and lubrication options to withstand the specific environmental conditions.
  • Accuracy and Positioning: Some applications require precise positioning and rotational accuracy. Determine the required level of accuracy and select a slewing ring that provides the necessary precision. Factors such as gear mechanism, backlash control, and manufacturing tolerances contribute to the accuracy of the slewing ring.
  • Operating Conditions: Consider the overall operating conditions of the application, including factors such as shock and vibration levels, duty cycle, continuous or intermittent operation, and expected service life. The slewing ring should be designed to withstand the anticipated operating conditions and provide reliable performance over the desired lifespan.
  • Integration and Compatibility: Assess the integration requirements of the slewing ring with the rest of the system or equipment. Consider factors such as mounting interfaces, connection points, gear compatibility, and the need for additional components such as drive systems or bearings. Ensure that the selected slewing ring is compatible with the existing or planned system components.
  • Industry Standards and Regulations: Depending on the application, specific industry standards and regulations may apply. Consider any applicable standards, such as ISO specifications or industry-specific guidelines, to ensure compliance and safety in the selection of the slewing ring.

By carefully analyzing these factors and selecting a slewing ring that meets the specific requirements of the application, one can ensure optimal performance, longevity, and reliability of the slewing ring in its intended use.

What maintenance practices are recommended for slewing rings to ensure optimal functionality?

Proper maintenance is essential to ensure the optimal functionality and longevity of slewing rings. Regular maintenance practices help prevent premature wear, minimize downtime, and ensure reliable performance. Here are some recommended maintenance practices for slewing rings:

  • Cleaning: Regularly clean the slewing rings to remove dirt, debris, and contaminants that can cause abrasion and affect the smooth operation of the rolling elements. Use appropriate cleaning agents and methods as recommended by the manufacturer.
  • Lubrication: Adequate lubrication is crucial for the smooth operation and reduced friction of slewing rings. Follow the manufacturer’s recommendations for the type of lubricant, the frequency of lubrication, and the quantity to be applied. Regularly inspect the lubrication system and replenish or replace the lubricant as needed.
  • Inspection: Periodically inspect the slewing rings for any signs of damage, wear, or misalignment. Check for abnormal noise, vibration, or irregularities in motion. Inspect the gear teeth, raceways, seals, and mounting interfaces. If any issues are identified, take appropriate action, such as repair or replacement, to prevent further damage.
  • Torque Checks: Regularly check the torque of the fasteners and bolts that secure the slewing rings. Ensure that they are tightened to the specified torque values. Loose fasteners can cause misalignment and compromise the performance and safety of the slewing rings.
  • Seal Inspection: Inspect the seals of the slewing rings to ensure they are intact and properly functioning. Damaged or worn seals can lead to contamination and loss of lubrication, resulting in increased friction and potential damage to the slewing rings. Replace any damaged seals promptly.
  • Alignment and Mounting: Proper alignment and mounting of slewing rings are critical for their optimal functionality. Ensure that the slewing rings are correctly aligned and securely mounted according to the manufacturer’s specifications. Misalignment or improper mounting can lead to increased stress, premature wear, and reduced performance.
  • Environmental Protection: Take measures to protect the slewing rings from harsh environmental conditions. Shield them from excessive moisture, dust, chemicals, and extreme temperatures whenever possible. Implement appropriate sealing systems and consider the use of protective covers or enclosures, especially in outdoor or exposed applications.
  • Training and Documentation: Provide appropriate training to personnel responsible for the maintenance of slewing rings. Ensure they are aware of the recommended maintenance practices and follow proper procedures. Keep comprehensive documentation of maintenance activities, including lubrication schedules, inspections, repairs, and replacements.

It is important to note that maintenance practices may vary depending on the specific application, environmental conditions, and manufacturer’s recommendations. Always refer to the manufacturer’s guidelines and consult with experts or maintenance professionals when necessary to ensure the most effective maintenance practices for your slewing rings.

Can you describe the factors to consider when selecting slewing rings for specific applications?

When selecting slewing rings for specific applications, several factors need to be considered to ensure optimal performance and reliability. Here’s a detailed description of the factors to consider:

  • Load Requirements: The load capacity of the slewing ring should match the anticipated loads in the application. Consider both the maximum static load (weight of the structure or equipment) and dynamic load (forces during operation). It is crucial to analyze the load distribution, including axial, radial, and moment loads, and select a slewing ring with sufficient load-carrying capacity to handle these loads.
  • Space Limitations: Evaluate the available space for the installation of the slewing ring. Consider the diameter, height, and width of the slewing ring to ensure it fits within the space constraints of the application. It is essential to consider both the external dimensions of the slewing ring and the required clearance for rotation.
  • Rotational Speed: Determine the required rotational speed of the slewing ring. Consider the application’s operating speed and any specific speed limitations. The slewing ring should be selected to accommodate the rotational speed requirements while maintaining smooth and efficient operation.
  • Environmental Conditions: Evaluate the operating environment of the application. Factors such as temperature, humidity, dust, water exposure, chemicals, and corrosive elements should be considered. Choose a slewing ring with appropriate sealing systems, corrosion-resistant materials, and lubrication options to withstand the specific environmental conditions.
  • Accuracy and Positioning: Some applications require precise positioning and rotational accuracy. Determine the required level of accuracy and select a slewing ring that provides the necessary precision. Factors such as gear mechanism, backlash control, and manufacturing tolerances contribute to the accuracy of the slewing ring.
  • Operating Conditions: Consider the overall operating conditions of the application, including factors such as shock and vibration levels, duty cycle, continuous or intermittent operation, and expected service life. The slewing ring should be designed to withstand the anticipated operating conditions and provide reliable performance over the desired lifespan.
  • Integration and Compatibility: Assess the integration requirements of the slewing ring with the rest of the system or equipment. Consider factors such as mounting interfaces, connection points, gear compatibility, and the need for additional components such as drive systems or bearings. Ensure that the selected slewing ring is compatible with the existing or planned system components.
  • Industry Standards and Regulations: Depending on the application, specific industry standards and regulations may apply. Consider any applicable standards, such as ISO specifications or industry-specific guidelines, to ensure compliance and safety in the selection of the slewing ring.

By carefully analyzing these factors and selecting a slewing ring that meets the specific requirements of the application, one can ensure optimal performance, longevity, and reliability of the slewing ring in its intended use.

China high quality OEM Turntable Bearing 10-20 0411/0-02013 Slewing Ring for Ladle Turret  China high quality OEM Turntable Bearing 10-20 0411/0-02013 Slewing Ring for Ladle Turret
editor by Dream 2024-05-10

China OEM Customized Slewing Ring Bearings 10-16 0200/0-08013 Single Row Ball Bearing for Tower Crane

Product Description

Customized Slewing Ring Bearings 10-16 5710/0-08013 Single Row Ball Bearing For Tower Crane

Four-point contact ball slewing turntable bearings 
consist of 2 ring seats. Compact structure, light weight, steel ball and arc track contact at 4 points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.

Single row cross roller slewing bearing
Composed of 2 or 3 rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.

Double row ball slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.

Three row roller slewing bearing
Three row roller bearing able to bear all kinds of loads at the same time, it is the largest 1 of the 4 structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.

Flange-Light Type Slewing Bearing
The Thin Section Slewing Bearing has the same structure with the ordinary slewing bearing,but the weight is light,and rotate flexibly,which widely used in the food machinaery,cHangZhou machinery and environmental machinery etc.

Model
DL
Weight
[kg]
Dimensions Mounting dimension Structural dimension Gear data Gear circumferential force Clearance
D
[mm]
De
[mm]
H
[mm]
D1
[mm]
D2
[mm]
na Φ/M
[mm]
ni Φ/M
[mm]
t
[mm]
n1 D3
[mm]
d1
[mm]
A
[mm]
Hu
[mm]
D
[mm]
M
[mm]
Z
[mm]
B
[mm]
k.m
[mm]
Allowed
[KN]
Max
[KN]
Axial Radial
232.20.571 26.9 518 326.5 56 490 375 16 18 12 M12 20 4 412.5 415.5 453 10.5 335 5 67 45.5 -0.75 13.54 27.08 ≤0.5 ≤0.5
232.20.0544 36.7 648 445.5 56 620 505 20 18 16 M12 20 4 542.5 545.5 583 10.5 456 6 76 45.5 -0.6 16 32 ≤0.5 ≤0.5
232.20.0644 43.4 748 547.5 56 720 605 24 18 18 M12 20 4 642.5 645.5 683 10.5 558 6 93 45.5 -0.6 15.62 31.24 ≤0.5 ≤0.5
232.20. 0571 50.8 848 649.2 56 820 705 24 18 20 M12 20 4 742.5 745.5 783 10.5 660 6 110 45.5 -0.6 15.32 30.64 ≤0.5 ≤0.5
232.20.0844 61.3 948 737.6 56 920 805 28 18 20 M12 20 4 842.5 845.5 883 10.5 752 8 94 45.5 -0.8 20.8 41.6 ≤0.5 ≤0.5
232.20.0944 65.4 1048 841.6 56 1571 905 32 18 22 M12 20 4 942.5 945.5 983 10.5 856 8 107 45.5 -0.8 20.49 40.98 ≤0.5 ≤0.5
232.20.1094 80.3 1198 985.6 56 1170 1055 32 18 24 M12 20 4 1092.5 1095.5 1133 10.5 1000 8 125 45.5 -0.8 20.16 40.32 ≤0.5 ≤0.5

 

Model
DL
Weight
[kg]
Dimensions Mounting dimension Structural dimension Gear data Gear circumferential force Clearance
D
[mm]
De
[mm]
HF
[mm]
D1
[mm]
D2
[mm]
 na  Φ/M
[mm]
 ni  Φ/M
[mm]
t
[mm]
 n1  D3
[mm]
d1
[mm]
C
[mm]
HFu
[mm]
D
[mm]
m
[mm]
Z
[mm]
B
[mm]
k.m
[mm]
Allowed
[KN]
Max
[KN]
Axial Radial
231.20.571 29 504 304 56 455 332 10 M12 24 18 20 4 412.5 415.5 375 10.5 495 5 99 45.5 -0.5 11.75 23.5 ≤0.5 ≤0.5
231.20.0544 39.2 640.8 434 56 585 462 14 M12 28 18 20 4 542.5 545.5 505 10.5 630 6 105 45.5 -0.5 14.2 28.4 ≤0.5 ≤0.5
231.20.0644 47.2 742.8 534 56 685 562 16 M12 32 18 20 4 642.5 645.5 605 10.5 732 6 122 45.5 -0.6 14.2 28.4 ≤0.5 ≤0.5
231.20. 0571 53.1 838.8 634 56 785 662 18 M12 32 18 20 4 742.5 745.5 705 10.5 828 6 138 45.5 -0.6 14.2 28.4 ≤0.5 ≤0.5
231.20.0844 64.7 950.4 734 56 885 762 18 M12 36 18 20 4 842.5 845.5 805 10.5 936 8 117 45.5 -0.8 18.93 37.86 ≤0.5 ≤0.5
231.20.0944 69.1 1046.4 834 56 985 862 20 M12 40 18 20 4 942.5 945.5 905 10.5 1032 8 129 45.5 -0.8 18.93 37.86 ≤0.5 ≤0.5
231.20.1094 82.5 1198.4 984 56 1135 1012 22 M12 40 18 20 4 1092.5 1095.5 1055 10.5 1184 8 148 45.5 -0.8 18.93 37.86 ≤0.5 ≤0.5

Model Weight
[kg]
Dimensions Mounting dimension Structural dimension Clearance
D
[mm]
De
[mm]
HF
[mm]
D1
[mm]
D2
[mm]
na Φ/M
[mm]
ni Φ/M
[mm]
n1 D3
[mm]
d1
[mm]
A
[mm]
C
[mm]
HFu
[mm]
HFo
[mm]
Axial Radial
230.20.571 23 518 304 56 490 332 16 18 24 18 4 412.5 415.5 453 375 10.5 10.5 ≤0.5 ≤0.5
230.20.0544 30.4 648 434 56 620 462 20 18 28 18 4 542.5 545.5 583 505 10.5 10.5 ≤0.5 ≤0.5
230.20.0644 35.8 748 534 56 720 562 24 18 32 18 4 642.5 645.5 683 605 10.5 10.5 ≤0.5 ≤0.5
230.20. 0571 42.2 848 634 56 820 662 24 18 32 18 4 742.5 745.5 783 705 10.5 10.5 ≤0.5 ≤0.5
230.20.0844 47.1 948 734 56 920 762 28 18 36 18 4 842.5 845.5 883 805 10.5 10.5 ≤0.5 ≤0.5
230.20.0944 52.3 1048 834 56 1571 862 32 18 40 18 4 942.5 945.5 983 905 10.5 10.5 ≤0.5 ≤0.5
230.20.1094 61.1 1198 984 56 1170 1012 32 18 40 18 4 1092.5 1095.5 1133 1055 10.5 10.5 ≤0.5 ≤0.5

 

Note:

1. n1 is the number of lubricating holes. Oil cup M8×1JB/T7940.1~JB/T7940.2.The Oil nipple’s location can be changed according to the user’s application.

2. “Km” is addendum reduction.

Type • Single row 4 point contact ball slewing bearing 
• Single row crossed cylindrical roller slewing bearings
• Double row ball slewing bearings
•Double row Roller/ball combination slewing bearing
•Three-Row Roller Slew Ring Bearing
Rolling elements Steel ball / Cylinder Roller
Rolling elements Material GCr5/GCr15SiMn/Customized
Bearing Material 50Mn/42CrMo/42CrMo4V /Customized
Cage Material Nylon/ steel /copper
Structure taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators
Outer diameter 50-10000mm
Bore size 50-10000mm
Mounting hole Through hole/Tapped hole
Raceway hardness 55-62HRC
Inner and outer ring 
modulation hardness
229-269HB/Customized
Gear type No gear ,Internal gear , External gear.
Embellish grease EP2 lithium lubricating grease
Certificate ABS.BV,DNV,ISO9001,GL,3.1,3.2
Application area Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator
Brand Name LYMC
Place of Origin HangZhou ZheJiang
Warranty 12 months
Payment term T/T is our first choice

Packing details

1,Filling with anti-rust oil
2.Corved with Plastic paper
3.Corved with kraft paper 
4.Corved with Blue tie 
5.Put in wooden box

 


Product Process

Application:

 

– Excavators – Drilling rigs – Mining Equipments – Cranes   -Offshore Equipments  – Vehicles  – Machine Tools  – Wind Turbines

About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.

Our Service:

FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service. 
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Straight Raceway
Material: 50mn/42CrMo
Customization:
Available

|

Can you provide insights into the importance of proper installation and alignment of slewing rings?

Proper installation and alignment of slewing rings are of utmost importance for ensuring optimal performance, longevity, and safety of rotating systems. Here’s a detailed explanation of the importance of proper installation and alignment of slewing rings:

  • Load Distribution: Correct installation and alignment of slewing rings ensure proper load distribution across the rolling elements and raceways. When a slewing ring is improperly installed or misaligned, excessive loads may be concentrated on specific areas, leading to accelerated wear, premature failure, and reduced load-bearing capacity. Proper alignment helps distribute loads evenly, maximizing the life expectancy of the slewing ring.
  • Smooth Operation: Accurate installation and alignment contribute to the smooth operation of rotating systems. Misalignment can result in increased friction, uneven motion, vibrations, and noise. These issues not only reduce efficiency but also impact the overall performance and reliability of the system. Proper alignment minimizes friction and ensures smooth and precise rotational movement, enhancing the system’s efficiency and productivity.
  • Reduced Wear and Tear: Improper installation or misalignment can cause excessive wear and tear on the slewing ring and associated components. Misalignment can lead to increased rolling element and raceway stresses, resulting in accelerated fatigue and surface damage. By achieving proper alignment, the slewing ring operates within its designed parameters, reducing wear and extending its operational life.
  • Optimized Performance: Proper installation and alignment directly impact the performance of rotating systems. Accurate alignment ensures that components such as gears, motors, and drive systems mesh correctly with the slewing ring. This alignment facilitates efficient power transmission, reduces energy losses, and improves the overall performance and responsiveness of the system.
  • Prevention of Structural Damage: Misalignment of slewing rings can exert excessive forces on the supporting structure or adjacent components. Over time, these forces can cause structural damage, misalignment in other parts of the system, or even equipment failure. Proper installation and alignment help prevent such structural damage, ensuring the integrity and longevity of the entire system.
  • Safety Considerations: Correct installation and alignment of slewing rings are crucial for safety in rotating systems. Misalignment can lead to unexpected movements, uncontrolled motion, or component failure, posing a risk to personnel, equipment, and the surrounding environment. Proper alignment reduces the likelihood of accidents, improves operational safety, and ensures compliance with safety regulations.
  • Ease of Maintenance: Properly aligned slewing rings are easier to maintain and service. Routine maintenance tasks such as lubrication, inspection, and replacement of components can be performed more efficiently when the slewing ring is correctly installed and aligned. This reduces downtime, extends maintenance intervals, and improves the overall operational efficiency of the system.

In summary, proper installation and alignment of slewing rings are critical for achieving optimal performance, reliability, and safety in rotating systems. Accurate alignment ensures load distribution, smooth operation, reduced wear, optimized performance, prevention of structural damage, enhanced safety, and ease of maintenance. It is essential to follow manufacturer guidelines, industry standards, and best practices to ensure the correct installation and alignment of slewing rings, maximizing their operational lifespan and the efficiency of the entire system.

Can you provide insights into the importance of proper installation and alignment of slewing rings?

Proper installation and alignment of slewing rings are of utmost importance for ensuring optimal performance, longevity, and safety of rotating systems. Here’s a detailed explanation of the importance of proper installation and alignment of slewing rings:

  • Load Distribution: Correct installation and alignment of slewing rings ensure proper load distribution across the rolling elements and raceways. When a slewing ring is improperly installed or misaligned, excessive loads may be concentrated on specific areas, leading to accelerated wear, premature failure, and reduced load-bearing capacity. Proper alignment helps distribute loads evenly, maximizing the life expectancy of the slewing ring.
  • Smooth Operation: Accurate installation and alignment contribute to the smooth operation of rotating systems. Misalignment can result in increased friction, uneven motion, vibrations, and noise. These issues not only reduce efficiency but also impact the overall performance and reliability of the system. Proper alignment minimizes friction and ensures smooth and precise rotational movement, enhancing the system’s efficiency and productivity.
  • Reduced Wear and Tear: Improper installation or misalignment can cause excessive wear and tear on the slewing ring and associated components. Misalignment can lead to increased rolling element and raceway stresses, resulting in accelerated fatigue and surface damage. By achieving proper alignment, the slewing ring operates within its designed parameters, reducing wear and extending its operational life.
  • Optimized Performance: Proper installation and alignment directly impact the performance of rotating systems. Accurate alignment ensures that components such as gears, motors, and drive systems mesh correctly with the slewing ring. This alignment facilitates efficient power transmission, reduces energy losses, and improves the overall performance and responsiveness of the system.
  • Prevention of Structural Damage: Misalignment of slewing rings can exert excessive forces on the supporting structure or adjacent components. Over time, these forces can cause structural damage, misalignment in other parts of the system, or even equipment failure. Proper installation and alignment help prevent such structural damage, ensuring the integrity and longevity of the entire system.
  • Safety Considerations: Correct installation and alignment of slewing rings are crucial for safety in rotating systems. Misalignment can lead to unexpected movements, uncontrolled motion, or component failure, posing a risk to personnel, equipment, and the surrounding environment. Proper alignment reduces the likelihood of accidents, improves operational safety, and ensures compliance with safety regulations.
  • Ease of Maintenance: Properly aligned slewing rings are easier to maintain and service. Routine maintenance tasks such as lubrication, inspection, and replacement of components can be performed more efficiently when the slewing ring is correctly installed and aligned. This reduces downtime, extends maintenance intervals, and improves the overall operational efficiency of the system.

In summary, proper installation and alignment of slewing rings are critical for achieving optimal performance, reliability, and safety in rotating systems. Accurate alignment ensures load distribution, smooth operation, reduced wear, optimized performance, prevention of structural damage, enhanced safety, and ease of maintenance. It is essential to follow manufacturer guidelines, industry standards, and best practices to ensure the correct installation and alignment of slewing rings, maximizing their operational lifespan and the efficiency of the entire system.

Can you explain the impact of slewing rings on the overall efficiency of rotating systems?

Slewing rings play a crucial role in the overall efficiency of rotating systems. Their design, performance, and proper functioning significantly impact the efficiency, performance, and reliability of various rotating systems. Here’s a detailed explanation of the impact of slewing rings on the overall efficiency of rotating systems:

  • Rotational Movement: Slewing rings enable smooth and controlled rotational movement in rotating systems. They support the rotation of components such as booms, arms, platforms, or structures with minimal friction and resistance. By minimizing energy losses due to friction, slewing rings contribute to the overall efficiency of the system.
  • Precision and Accuracy: Slewing rings provide precise and accurate motion control in rotating systems. They ensure smooth and controlled rotation, allowing for precise positioning, alignment, or tracking of components. The ability to achieve precise movements reduces the need for corrective actions and enhances the overall efficiency and productivity of the system.
  • Load-Bearing Capacity: Slewing rings are designed to handle significant loads in rotating systems. They provide robust load-bearing capabilities, distributing the load evenly and minimizing stress concentrations. By efficiently carrying and transferring loads, slewing rings optimize the system’s load capacity and prevent premature wear or failure of components.
  • Reduction of Friction and Wear: Properly lubricated and maintained slewing rings help reduce friction and wear in rotating systems. They minimize the energy losses associated with friction, resulting in improved efficiency. Reduced friction also decreases the wear and tear on the components, prolonging their lifespan and reducing the need for frequent repairs or replacements.
  • Stability and Safety: Slewing rings provide stability and safety to rotating systems. They ensure the smooth and stable rotation of components, minimizing vibrations, wobbling, or unintended movements. This stability not only enhances the system’s efficiency but also improves the safety of operations, reducing the risk of accidents or damage to the equipment and surrounding environment.
  • Impact on Power Transmission: Slewing rings are often integrated with power transmission systems in rotating systems. They efficiently transmit power from the drive source to the rotating components, ensuring the effective transfer of torque and rotational force. By optimizing power transmission, slewing rings contribute to the overall efficiency and performance of the system.
  • System Integration and Versatility: Slewing rings are designed to integrate seamlessly into various rotating systems. They can be customized to meet specific requirements, such as size, load capacity, or environmental conditions. The versatility of slewing rings allows for their efficient integration into different applications, enhancing the overall efficiency and adaptability of the rotating systems.

In summary, slewing rings have a significant impact on the overall efficiency of rotating systems. Their contribution to smooth rotational movement, precision, load-bearing capacity, reduction of friction and wear, stability, power transmission, system integration, and versatility all play a vital role in maximizing the efficiency, performance, and reliability of various rotating systems in industries such as construction, material handling, energy, transportation, and manufacturing.

China OEM Customized Slewing Ring Bearings 10-16 0200/0-08013 Single Row Ball Bearing for Tower Crane  China OEM Customized Slewing Ring Bearings 10-16 0200/0-08013 Single Row Ball Bearing for Tower Crane
editor by Dream 2024-05-08

China OEM Hydraulic Rock Crusher Bearing Xa120235-N Slewing Ring Bearing

Product Description

Welcome to choose CHINAMFG INDUSTRIAL LIMITED. 

NO 1. our adwantages

1. 14 years bearing products manufacturing and exporting experiences.
2. OEM order and non-standard bearing order can be accepted.
3. Many sizes of bearing are available. Large quantity bearing can be provided.
4. To respect customers, you can choose the loading port.
5. A certain number of free sample can be provide to support our customer’s after-sale services and warranty.
 
NO 2. Description: Tapered Roller Bearing
 
The main purpose of such bearings: automotive front, rear, transmission, differential, pinion

shaft, spindle, construction machinery, large-scale agricultural machinery, railway vehicles,

gear reduction, the rolling mill roll neck small deceleration devices.
 
Product Categories
CHINAMFG production metric, inch single, double, four-row tapered roller bearings – Types
Single row tapered roller bearings
Such bearings can only limit shaft or housing in 1 direction of the axial displacement in

1 direction to bear the axial load. In the radial load of action, the axial force generated in

the bearing must also be balanced. Two face to face or back to back bearing should be

used.
Double row tapered roller bearings
Such tapered bearings in radial load at the same time can withstand axial load. The axial

clearance in the bearing within the shaft or housing to limit axial movement of the two-way.
Four-row tapered roller bearings
Performance of such bearings and double row tapered roller bearing is basically the same,

but more than double row tapered roller bearings under radial load bigger, lower speed

limits, mainly for heavy machinery, such as rolling machines.
Four-row tapered roller bearings
CHINAMFG provide long-life four-row tapered roller bearings. Personalize bearing the new

design, fully sealed bearing change traditional design method, using the new structure type

seal and dust seal combination, to improve the sealing effect, improve sealing

performance. Multi-sealed double, four-row tapered roller bearings compared with open

structure bearing, life expectancy increased by 20% to 40%; lubricant consumption

reduced by 80%.
 
Size range
Tapered Roller Bearings CHINAMFG basic dimensions are listed in the data table size,
Single row tapered roller bearings:
Inner diameter range: 20mm ~ 1270mm
Diameter size range: 40mm ~ 1465mm
Width range: 15mm ~ 240 mm
Double row tapered roller bearings:
Inner diameter range: 38mm ~ 1560mm
Diameter size range: 70mm ~ 1800mm
Width range: 50mm ~ 460 mm
Four tapered roller bearings:
Inner diameter range: 130mm ~ 1600mm
Diameter size range: 200mm ~ 2000mm
Width range: 150mm ~ 1150 mm
 
 NO 3. OEM all brand bearing

1. deep groove ball bearing 6000,6200,6300,6400,61800,61900,Z,RS,ZZ,2RS
2. spherical roller bearing 22200,22300,23000,24000,23100,24100,CA,CC,E,W33
3. cylindrical roller bearing N,NU,NJ,NN,NUP,E,ECP,ECM,ECJ
4. taper roller bearing 35710,30300,32200,32300,31300,32000
5. Aligning ball bearing 1200,1300,2200,2300,
6. needle roller bearing NA,NAV,NK,NKI,RNA,NK,RNAV,ZKLF,ZKLN,ZARF,ZARN
7. thrust ball bearing 51100,51200,51300,51400,E,M
8. angular contact ball bearing7000,7100,7200,7300,AC,BECBM,C 
9. spherical plain bearing GE,GEG,GEEW,U,UC,UG,GX,GAC,SA,SABP
10.Wheel hub bearing /ceramic bearing/plastic bearing/lazy susan bearing
 
 NO 4. Tapered Roller Bearing Specification: 
 

Seals Types 2RS,OPEN
Vibration Level Z1V1,Z2V2,Z3V3
Clearance C2,C0,C3,C4,C5
Tolerance Codes ABEC-1,ABEC-3,ABEC-5
Materral GCr15-China/AISI52100-USA/Din100Cr6-Germany
MOQ 1Set at least
Delivery Time 5-15 days after contract
Payment Terms TT/PAPAL/WESTERN UNION
Package Tube package+outer carton+pallets;Single box+outer carton+pallets;
Tube packge+middle box+outer carton+pallets;According to your requirement

NO 5. Tapered roller bearing Models and Size: 

 
Why Choose Us:
 
We are an industrial and trading company.We have our own brand: SFNB .If you interested in our product,I can take you to visit our factory.
Our factory have advanced testing equipment,before the every product leave the factory,we will be testing.We can send samples to you,you can test the quality,and if you accept the sample quality,we can promise: the follow-up orders’ quality will be the same as samples.
About ordinary standard type of bearing ,We have rich inventory,not have MOQ,if your need a product is Non-standard size,need customize,we will according the product size to determine the MOQ.
Our company can accept OEM,you can send sample to me,we can manufacturing products the same as sample.Meanwhile,we also can accept some CHINAMFG brands of OEM,
If the amount of money is less,you can pay it by Paypal .Of course you can payment by TT or Western Union etc. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle: 15°
Aligning: Non-Aligning Bearing
Separated: Separated
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
Customization:
Available

|

Can you provide examples of products or machinery that commonly use slewing rings?

Slewing rings are widely used in various industries and play a vital role in the functioning of numerous products and machinery. They offer rotational support, precise motion control, and load-bearing capabilities. Here are some examples of products or machinery that commonly utilize slewing rings:

  • Construction Machinery: Slewing rings are extensively used in construction machinery such as excavators, cranes, concrete pumps, and tower cranes. They enable the rotation and movement of the boom, arm, and bucket, allowing for precise control during digging, lifting, and material placement operations.
  • Material Handling Equipment: Slewing rings are essential components in material handling equipment like forklifts, stackers, and reach stackers. They facilitate the rotation and swiveling of the mast or boom, enabling efficient loading, unloading, and stacking of goods in warehouses, logistics centers, and ports.
  • Wind Turbines: Slewing rings are crucial in wind turbines, where they support the yaw and pitch mechanisms. The yaw system allows the turbine to rotate and face the wind direction, while the pitch system adjusts the angle of the blades for optimal wind capture. Slewing rings enable precise and controlled movement, ensuring efficient wind energy conversion.
  • Cranes: Various types of cranes, including mobile cranes, crawler cranes, and tower cranes, rely on slewing rings for their rotation and lifting capabilities. Slewing rings support the crane’s superstructure, allowing it to rotate horizontally, and provide stability and load-bearing capacity during lifting operations.
  • Rotary Drilling Rigs: Slewing rings are commonly used in rotary drilling rigs for oil and gas exploration, foundation construction, and mining operations. They enable the rotation and positioning of the drill mast, allowing for precise drilling and borehole creation.
  • Railway Equipment: Slewing rings find application in railway equipment such as rail cranes, railway maintenance machines, and turntables. They facilitate the rotation and movement of equipment, ensuring efficient maintenance, repairs, and track positioning.
  • Robotics: Slewing rings are integral to robotic systems, including industrial robots, robotic arms, and robotic welding systems. They enable the rotational movement and articulation of the robot’s joints, allowing for precise and controlled manipulation in manufacturing, assembly, and automation processes.
  • Solar Tracking Systems: Slewing rings are employed in solar tracking systems to orient solar panels toward the sun. They enable the rotation and tilting of the panels, maximizing solar energy absorption and optimizing power generation in solar farms and photovoltaic systems.
  • Turntables and Rotating Platforms: Slewing rings are used in turntables and rotating platforms found in various applications. They support the rotational movement of entertainment stages, amusement park rides, revolving restaurants, and display platforms in trade shows or exhibitions.

These are just a few examples of the diverse range of products and machinery that commonly utilize slewing rings. Their ability to provide rotational support, precise motion control, and load-bearing capabilities makes them indispensable components in numerous industries, including construction, material handling, energy, transportation, robotics, and entertainment.

Can you provide insights into the importance of proper installation and alignment of slewing rings?

Proper installation and alignment of slewing rings are of utmost importance for ensuring optimal performance, longevity, and safety of rotating systems. Here’s a detailed explanation of the importance of proper installation and alignment of slewing rings:

  • Load Distribution: Correct installation and alignment of slewing rings ensure proper load distribution across the rolling elements and raceways. When a slewing ring is improperly installed or misaligned, excessive loads may be concentrated on specific areas, leading to accelerated wear, premature failure, and reduced load-bearing capacity. Proper alignment helps distribute loads evenly, maximizing the life expectancy of the slewing ring.
  • Smooth Operation: Accurate installation and alignment contribute to the smooth operation of rotating systems. Misalignment can result in increased friction, uneven motion, vibrations, and noise. These issues not only reduce efficiency but also impact the overall performance and reliability of the system. Proper alignment minimizes friction and ensures smooth and precise rotational movement, enhancing the system’s efficiency and productivity.
  • Reduced Wear and Tear: Improper installation or misalignment can cause excessive wear and tear on the slewing ring and associated components. Misalignment can lead to increased rolling element and raceway stresses, resulting in accelerated fatigue and surface damage. By achieving proper alignment, the slewing ring operates within its designed parameters, reducing wear and extending its operational life.
  • Optimized Performance: Proper installation and alignment directly impact the performance of rotating systems. Accurate alignment ensures that components such as gears, motors, and drive systems mesh correctly with the slewing ring. This alignment facilitates efficient power transmission, reduces energy losses, and improves the overall performance and responsiveness of the system.
  • Prevention of Structural Damage: Misalignment of slewing rings can exert excessive forces on the supporting structure or adjacent components. Over time, these forces can cause structural damage, misalignment in other parts of the system, or even equipment failure. Proper installation and alignment help prevent such structural damage, ensuring the integrity and longevity of the entire system.
  • Safety Considerations: Correct installation and alignment of slewing rings are crucial for safety in rotating systems. Misalignment can lead to unexpected movements, uncontrolled motion, or component failure, posing a risk to personnel, equipment, and the surrounding environment. Proper alignment reduces the likelihood of accidents, improves operational safety, and ensures compliance with safety regulations.
  • Ease of Maintenance: Properly aligned slewing rings are easier to maintain and service. Routine maintenance tasks such as lubrication, inspection, and replacement of components can be performed more efficiently when the slewing ring is correctly installed and aligned. This reduces downtime, extends maintenance intervals, and improves the overall operational efficiency of the system.

In summary, proper installation and alignment of slewing rings are critical for achieving optimal performance, reliability, and safety in rotating systems. Accurate alignment ensures load distribution, smooth operation, reduced wear, optimized performance, prevention of structural damage, enhanced safety, and ease of maintenance. It is essential to follow manufacturer guidelines, industry standards, and best practices to ensure the correct installation and alignment of slewing rings, maximizing their operational lifespan and the efficiency of the entire system.

What safety considerations should be taken into account when using slewing rings in industrial settings?

When using slewing rings in industrial settings, several safety considerations should be taken into account to ensure the well-being of personnel, equipment, and the surrounding environment. Here’s a detailed explanation of the safety considerations when using slewing rings:

  • Proper Training and Familiarity: Personnel involved in the operation, maintenance, and servicing of systems equipped with slewing rings should receive proper training and be familiar with the specific procedures and safety guidelines related to slewing ring usage. This includes understanding the system’s limitations, recommended operating parameters, and emergency procedures.
  • Safe Working Distance: Establishing a safe working distance is crucial when working with rotating systems that incorporate slewing rings. Adequate barriers, guardrails, or safety signs should be in place to prevent unintended access to hazardous areas around the slewing ring. Personnel should be aware of the safe working zones and maintain a safe distance from the rotating components.
  • Lockout/Tagout Procedures: Before performing any maintenance or repair tasks on systems with slewing rings, proper lockout/tagout procedures should be followed to ensure the equipment is de-energized and cannot be accidentally started. This prevents unexpected rotation of the slewing ring during maintenance activities, reducing the risk of entanglement or injury.
  • Personal Protective Equipment (PPE): Personnel working with or around slewing rings should wear appropriate personal protective equipment, such as safety helmets, protective eyewear, gloves, and safety footwear. The specific PPE requirements may vary depending on the nature of the industrial setting and potential hazards associated with slewing ring operation.
  • Regular Inspection and Maintenance: Routine inspection and maintenance of slewing rings are essential for identifying any signs of wear, damage, or misalignment. Regularly scheduled inspections help detect potential issues early on and allow for timely repairs or replacements, reducing the risk of sudden failures or accidents during operation.
  • Proper Lubrication: Adequate lubrication of slewing rings is crucial for their optimal performance and longevity. Lubrication intervals and methods recommended by the manufacturer should be followed to ensure proper lubrication. Improper or inadequate lubrication can lead to increased friction, overheating, accelerated wear, and potential failure of the slewing ring.
  • Environmental Considerations: The environmental conditions in which slewing rings operate should be taken into account for safety purposes. Factors such as temperature extremes, moisture, dust, or corrosive substances can affect the performance and durability of slewing rings. Proper sealing, protective coatings, and environmental controls should be implemented to mitigate potential hazards and ensure safe operation.
  • Emergency Stop and Shutdown: Rotating systems equipped with slewing rings should be equipped with emergency stop buttons or other means of immediate shutdown. Personnel should be trained on how to use these emergency stop features effectively and be aware of the emergency shutdown procedure to quickly and safely halt the rotation of the slewing ring in case of an emergency.
  • Compliance with Regulations and Standards: It is essential to comply with relevant safety regulations, standards, and industry guidelines when using slewing rings in industrial settings. These regulations may vary depending on the region and industry-specific requirements. Adhering to these guidelines helps ensure the safety and compliance of the equipment and protects against potential hazards.

In summary, safety considerations when using slewing rings in industrial settings include proper training, maintaining safe working distances, following lockout/tagout procedures, wearing appropriate PPE, conducting regular inspections and maintenance, ensuring proper lubrication, considering environmental factors, implementing emergency stop measures, and complying with safety regulations. By addressing these safety considerations, the risks associated with slewing ring operation can be minimized, promoting a safe working environment and preventing accidents or injuries.

China OEM Hydraulic Rock Crusher Bearing Xa120235-N Slewing Ring Bearing  China OEM Hydraulic Rock Crusher Bearing Xa120235-N Slewing Ring Bearing
editor by Dream 2024-05-08

China OEM CT 312b Excavator Slewing Bearing Slewing Ring 616411 Made in China

Product Description

1. Company introduction 

HangZhou King Slewing Bearing Technology Co.,Ltd.is a professional manufacturer and exporter of excavator slewing rings, its factory is located in HangZhou city, ZheJiang Province,very close to ZheJiang Port, goods can be easily transported all over the world.

Our main product is excavator slewing rings, we can now produce more than 1000 part numbers to match with many famous excavator brands, such as CATERPILLAR, KOMATSU, HITACHI, KOBELCO, HYUNDAI, VOLVO, DOOSAN, LIEBHERR, DAEWOO, JCB,CASE, SUMITOMO, KATO,etc. 

Our engineers have more than 20 years rich experience in studying excavator slewing rings and we have professional measuring team can go to customers ‘ workplace  to measure the old or broken slewing rings, then to produce the same replacements. We have our own factory with latest CNC machines , such as vertical lathes, gear hobbing machines, gear shaping machines, hole drilling mahines, quenching machines, vertical grinding machines, turning machines,etc. to meet customers’ quick delivery requirements. 

We will adhere to the “quality first, credibility first” business philosophy and continually provide our clients with superior quality products and services. We warmly welcome customers from all over the world to visit us and together to build a better future !

2. Our slewing rings can match with more than 1000 excavator models. 

3. Our excavator part numbers as below:

CAT Slewing Ring Replacement 
Excavator model number Part number Excavator model number Part number
CAT 307   102-6377 CAT 325C 227-6087 
CAT 307C   240-8361 CAT 325 199-4483
CAT 308C   240-8362 CAT 325 4178151
CAT 312CL  229-1077 CAT 325 3530676
CAT 311    231-6853 CAT 325 2316854
CAT 312B    616411 CAT 325CL  199-4475
CAT 312CL  229-1077 CAT 326 353-0649
CAT 312C 229-1077 CAT 329D      227-6087
CAT 315  148-4568 CAT 330  7Y571
CAT 318B  148-4568 CAT 330   1994559
CAT M315 M318 145-4809 CAT 330  353-0487
CAT 315C   229-1080 CAT 330B   231-6859
CAT 319C  227-6079 CAT 330B   114-1434
CAT320B  1141414 CAT 330D 227-6089 
CAT320BL   121-8222 CAT 330C  227-6089 
CAT 320  7Y1565 CAT330D/DL 227-6090
CAT 320B      114-1505 CAT 336D   353-0489
CAT 320BL   177-7723 CAT 336DL         227-6089 
CAT 320BL    114-1341 CAT 336DL   353-0680  
CAT 320C 227-6081 CAT 336D   353-0490
CAT 320C 227-6147 CAT 345   227-6052
CAT 320C 171-9425 CAT 345B     136-2969
CAT 320D 227-6082 CAT 345B      200-3645
CAT 320L 7Y1563 CAT 345BII   227-6094
CAT 320L 7Y1563  CAT 345BL    136-2970
CAT 225 8K4127 CAT 345BL    169-5536/169-5537
CAT 322C   221-6764 CAT 345DL  227-6037
CAT 324D    227-6085 CAT 345ECL   227-6052
CAT 325  7Y 0571 CAT 349D  353-0490
CAT 350   1026392 CAT374  333-3009
CAT 365C   199-4565 CAT374  367-8361
CAT 365C  227-6096 CAT 385C 199-4491
CAT 365C  227-6097 CAT 385C 227-6099
CAT 365C  199-4586 CAT 385BL  227-6098
CAT 365CL   267-6793 CAT 385CL  227-6099
CAT 365CL    397-9666 CAT 390D 227-6099
CAT374F
 
378-9586     

4. Our excavator slewing ring pictures

5. Our slewing bearing packaging pictures 

6. Transportation way: By sea/ air/ rail/ road/ TNT/DHL/UPS/Fedex,ect. 

7. Contact information
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: Short Delivery Time
Sealing Gland: We Use Seal Rings
Rolling-Element Number: Single Row, Three Row for Huge Slewing Bearing
Roller Type: Four Point Contact
Material: Alloy Steel
Samples:
US$ 800/Set
1 Set(Min.Order)

|

Customization:
Available

|

What maintenance practices are recommended for slewing rings to ensure optimal functionality?

Proper maintenance is essential to ensure the optimal functionality and longevity of slewing rings. Regular maintenance practices help prevent premature wear, minimize downtime, and ensure reliable performance. Here are some recommended maintenance practices for slewing rings:

  • Cleaning: Regularly clean the slewing rings to remove dirt, debris, and contaminants that can cause abrasion and affect the smooth operation of the rolling elements. Use appropriate cleaning agents and methods as recommended by the manufacturer.
  • Lubrication: Adequate lubrication is crucial for the smooth operation and reduced friction of slewing rings. Follow the manufacturer’s recommendations for the type of lubricant, the frequency of lubrication, and the quantity to be applied. Regularly inspect the lubrication system and replenish or replace the lubricant as needed.
  • Inspection: Periodically inspect the slewing rings for any signs of damage, wear, or misalignment. Check for abnormal noise, vibration, or irregularities in motion. Inspect the gear teeth, raceways, seals, and mounting interfaces. If any issues are identified, take appropriate action, such as repair or replacement, to prevent further damage.
  • Torque Checks: Regularly check the torque of the fasteners and bolts that secure the slewing rings. Ensure that they are tightened to the specified torque values. Loose fasteners can cause misalignment and compromise the performance and safety of the slewing rings.
  • Seal Inspection: Inspect the seals of the slewing rings to ensure they are intact and properly functioning. Damaged or worn seals can lead to contamination and loss of lubrication, resulting in increased friction and potential damage to the slewing rings. Replace any damaged seals promptly.
  • Alignment and Mounting: Proper alignment and mounting of slewing rings are critical for their optimal functionality. Ensure that the slewing rings are correctly aligned and securely mounted according to the manufacturer’s specifications. Misalignment or improper mounting can lead to increased stress, premature wear, and reduced performance.
  • Environmental Protection: Take measures to protect the slewing rings from harsh environmental conditions. Shield them from excessive moisture, dust, chemicals, and extreme temperatures whenever possible. Implement appropriate sealing systems and consider the use of protective covers or enclosures, especially in outdoor or exposed applications.
  • Training and Documentation: Provide appropriate training to personnel responsible for the maintenance of slewing rings. Ensure they are aware of the recommended maintenance practices and follow proper procedures. Keep comprehensive documentation of maintenance activities, including lubrication schedules, inspections, repairs, and replacements.

It is important to note that maintenance practices may vary depending on the specific application, environmental conditions, and manufacturer’s recommendations. Always refer to the manufacturer’s guidelines and consult with experts or maintenance professionals when necessary to ensure the most effective maintenance practices for your slewing rings.

What safety considerations should be taken into account when using slewing rings in industrial settings?

When using slewing rings in industrial settings, several safety considerations should be taken into account to ensure the well-being of personnel, equipment, and the surrounding environment. Here’s a detailed explanation of the safety considerations when using slewing rings:

  • Proper Training and Familiarity: Personnel involved in the operation, maintenance, and servicing of systems equipped with slewing rings should receive proper training and be familiar with the specific procedures and safety guidelines related to slewing ring usage. This includes understanding the system’s limitations, recommended operating parameters, and emergency procedures.
  • Safe Working Distance: Establishing a safe working distance is crucial when working with rotating systems that incorporate slewing rings. Adequate barriers, guardrails, or safety signs should be in place to prevent unintended access to hazardous areas around the slewing ring. Personnel should be aware of the safe working zones and maintain a safe distance from the rotating components.
  • Lockout/Tagout Procedures: Before performing any maintenance or repair tasks on systems with slewing rings, proper lockout/tagout procedures should be followed to ensure the equipment is de-energized and cannot be accidentally started. This prevents unexpected rotation of the slewing ring during maintenance activities, reducing the risk of entanglement or injury.
  • Personal Protective Equipment (PPE): Personnel working with or around slewing rings should wear appropriate personal protective equipment, such as safety helmets, protective eyewear, gloves, and safety footwear. The specific PPE requirements may vary depending on the nature of the industrial setting and potential hazards associated with slewing ring operation.
  • Regular Inspection and Maintenance: Routine inspection and maintenance of slewing rings are essential for identifying any signs of wear, damage, or misalignment. Regularly scheduled inspections help detect potential issues early on and allow for timely repairs or replacements, reducing the risk of sudden failures or accidents during operation.
  • Proper Lubrication: Adequate lubrication of slewing rings is crucial for their optimal performance and longevity. Lubrication intervals and methods recommended by the manufacturer should be followed to ensure proper lubrication. Improper or inadequate lubrication can lead to increased friction, overheating, accelerated wear, and potential failure of the slewing ring.
  • Environmental Considerations: The environmental conditions in which slewing rings operate should be taken into account for safety purposes. Factors such as temperature extremes, moisture, dust, or corrosive substances can affect the performance and durability of slewing rings. Proper sealing, protective coatings, and environmental controls should be implemented to mitigate potential hazards and ensure safe operation.
  • Emergency Stop and Shutdown: Rotating systems equipped with slewing rings should be equipped with emergency stop buttons or other means of immediate shutdown. Personnel should be trained on how to use these emergency stop features effectively and be aware of the emergency shutdown procedure to quickly and safely halt the rotation of the slewing ring in case of an emergency.
  • Compliance with Regulations and Standards: It is essential to comply with relevant safety regulations, standards, and industry guidelines when using slewing rings in industrial settings. These regulations may vary depending on the region and industry-specific requirements. Adhering to these guidelines helps ensure the safety and compliance of the equipment and protects against potential hazards.

In summary, safety considerations when using slewing rings in industrial settings include proper training, maintaining safe working distances, following lockout/tagout procedures, wearing appropriate PPE, conducting regular inspections and maintenance, ensuring proper lubrication, considering environmental factors, implementing emergency stop measures, and complying with safety regulations. By addressing these safety considerations, the risks associated with slewing ring operation can be minimized, promoting a safe working environment and preventing accidents or injuries.

How does the choice of materials impact the performance of slewing rings in different environments?

The choice of materials significantly impacts the performance of slewing rings in different environments. The selection of appropriate materials ensures the desired strength, durability, corrosion resistance, and overall reliability of the slewing rings. Here’s a detailed explanation of how the choice of materials impacts the performance of slewing rings in different environments:

  • Corrosion Resistance: Different environments may expose slewing rings to corrosive elements such as moisture, chemicals, or saltwater. Choosing materials with high corrosion resistance, such as stainless steel or corrosion-resistant alloys, helps protect the slewing rings from chemical reactions and rust formation. Corrosion-resistant materials ensure the longevity and reliability of slewing rings, especially in marine, offshore, or chemical industry applications.
  • Temperature Resistance: Environmental conditions, such as extreme temperatures or thermal cycling, can affect the performance of slewing rings. Materials that exhibit excellent temperature resistance, such as heat-treated steels or specialized alloys, are crucial in applications where slewing rings are exposed to high or low temperatures. These materials maintain their mechanical properties and dimensional stability, ensuring reliable performance even in demanding temperature environments.
  • Wear and Fatigue Resistance: In applications with high loads, repetitive movements, or abrasive environments, slewing rings may experience wear and fatigue. Choosing materials with high wear resistance, such as hardened steels or materials with specialized coatings, minimizes surface damage and extends the service life of the slewing rings. These materials can withstand the repetitive stresses and abrasive conditions, reducing the risk of premature failure.
  • Weight Considerations: In certain applications, weight is a critical factor. Slewing rings that are used in lightweight or mobile equipment may require materials that offer a balance between strength and weight. Lightweight materials like aluminum or high-strength composites can be suitable choices to reduce the overall weight of the slewing rings and improve the efficiency and maneuverability of the equipment.
  • Load Capacity: The choice of materials affects the load-carrying capacity of slewing rings. Materials with high tensile strength and fatigue resistance, such as specialized steels or alloys, enhance the load-bearing capabilities of the slewing rings. The selection of materials with appropriate mechanical properties ensures that the slewing rings can handle the required loads without deformation or failure.
  • Compatibility with Lubricants: Lubrication is essential for smooth operation and reduced friction in slewing rings. The choice of materials should consider their compatibility with the lubricants used in the specific environment. Certain materials may be more compatible with certain types of lubricants, ensuring optimal lubrication and minimizing wear and friction.
  • Electrical Conductivity: In applications where electrical conductivity is required, such as in certain industrial or robotic systems, materials with appropriate electrical conductivity properties may be necessary. Copper or specific alloys can be chosen to provide the desired electrical conductivity while maintaining the mechanical integrity of the slewing rings.

By selecting the appropriate materials based on the environmental conditions and specific application requirements, the performance and reliability of slewing rings can be optimized. Manufacturers and engineers consider factors such as corrosion resistance, temperature resistance, wear resistance, weight considerations, load capacity, lubricant compatibility, and electrical conductivity to determine the most suitable materials for slewing rings in different environments.

China OEM CT 312b Excavator Slewing Bearing Slewing Ring 616411 Made in China  China OEM CT 312b Excavator Slewing Bearing Slewing Ring 616411 Made in China
editor by Dream 2024-04-30

China Best Sales 07.1075.01 OEM Crossed Roller Slewing Bearing wheel bearing

Product Description

 

07.1075.01 OEM Crossed Roller Slewing Bearing

 The four-point contact ball slewing bearing with flange is supplied. The bearing does not have teeth, and the inner and outer rings are flanged. It belongs to the light series of slewing bearings.The series of slewing bearings with flanges on the outer wheel make the axial positioning simple.     

 The bearing seat is no longer needed and it becomes more economical. In order to obtain the low friction torque, high rigidity and good rotation accuracy of the bearing, a steel ball with a small outer diameter is used. The use of hollow shafts ensures light weight and wiring space. Flanged slewing bearings mainly bear radial loads, but they can also bear radial loads and axial loads at the same time.

 

Type • Single row 4 point contact ball slewing bearing 
• Single row crossed cylindrical roller slewing bearings
• Double row ball slewing bearings
•Double row Roller/ball combination slewing bearing
•Three-Row Roller Slew Ring Bearing
Rolling elements Steel ball / Cylinder Roller
Rolling elements Material GCr5/GCr15SiMn/Customized
Bearing Material 50Mn/42CrMo/42CrMo4V /Customized
Cage Material Nylon/ steel /copper
Structure taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators
Outer diameter 50-10000mm
Bore size 50-10000mm
Mounting hole Through hole/Tapped hole
Raceway hardness 55-62HRC
Inner and outer ring 
modulation hardness
229-269HB/Customized
Gear type No gear ,Internal gear , External gear.
Embellish grease EP2 lithium lubricating grease
Certificate ABS.BV,DNV,ISO9001,GL,3.1,3.2
Application area Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator
Brand Name LYMC
Place of Origin HangZhou ZheJiang
Warranty 12 months
Payment term T/T is our first choice

Packing details

1,Filling with anti-rust oil
2.Corved with Plastic paper
3.Corved with kraft paper 
4.Corved with Blue tie 
5.Put in wooden box

Product Process
Application:

 

– Excavators – Drilling rigs – Mining Equipments – Cranes   -Offshore Equipments  – Vehicles  – Machine Tools  – Wind Turbines

About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.

Our Service:

FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service. 
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: High Speed, Antimagnetic, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Material: 50mn/42CrMo
Type: External Gear
Samples:
US$ 780/Set
1 Set(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

bushing

The Benefits of Using Self-Lubricating Bushings for Your Next Pivot

Like any other auto part, control arm bushings wear out over time. This results in an increase in irritating vibrations that can be dangerous in severe cases. The bushings in the control arms also wear out due to the stress that extreme driving conditions put on the control arms. Additionally, environmental factors and oversized tires tend to transmit more vibration through the bushing than conventionally sized tires. Whatever the cause, bushings can be the source of many problems.

wear and cracking

The main cause of dry valve side bushing cracking is a mismatch in thermal expansion of the core and flange. This situation can seriously compromise the safety of the power system. To improve the safety of dry valve side bushings, the crack development of epoxy impregnated paper under various conditions was investigated. A coupled thermomechanical simulation model was also used to study the cracking process.
The first step in diagnosing the cause of bushing wear and cracking is a visual inspection. The bushing of the lower control arm is fixed to the frame by a bracket. If there are any visible cracks, it’s time to replace the bushing. However, there is no need to replace the entire suspension. In some cases, worn bushings can cause a variety of problems, including body lean, excessive tire wear and cornering noise.

Maintenance free

If you’re considering maintenance-free bushings for your next pivot, you’ll be wondering what to look for in these components. The bushing protects the housing from corrosion and keeps the bushing under pressure. However, many users are not familiar with what these components can do for their applications. In this article, we’ll look at several examples of truly maintenance-free pivots and discuss their requirements.
One of the most popular types of maintenance-free bushings are flanged and parallel. Unlike worm gear bushings, these self-lubricating metal bearings are ideal for a variety of applications and conditions. They reduce failure and downtime costs while providing the long-term lubrication required by other types of bushings. Since these sleeves are made of lead-free material, they are RoHS compliant, which means they are environmentally friendly.Another common maintenance-free bushing is plastic. This material is easier to find off-the-shelf and relatively inexpensive to produce. However, it is not suitable for high load applications as it will crack under heavy loads and damage mating parts. Plastics can also deviate if the manufacturing process is imprecise. Plastic bushings can also crack when subjected to high loads.
bushing

self-lubricating

When using a self-lubricating bushing, there is no need to apply grease to the bushing. Oily liquids tend to attract dirt and grit, which can wear away the graphite prematurely. By eliminating the need for regular lubrication, you will reduce equipment maintenance costs. This article will explore the benefits of self-lubricating bushings. You will love your kindness.
Self-lubricating bushings have a strong base material to withstand radial bearing pressure while providing shaft support at the contact surfaces. The material also has good fatigue properties and low friction motion. Self-lubricating bushings can be used in environments with high temperatures and aggressive media. These products can also withstand enormous pressure. When using self-lubricating bushings, it is important to select the correct material.
The main advantage of using self-lubricating bushings is ease of maintenance. They don’t require oil to run and are cheaper to buy. Their main benefit is that they can significantly reduce your machine running costs. These bearings do not require oiling operations, reducing maintenance costs. These bearings also offer a simplified mechanical design due to their thin walls and high load capacity. In addition, they reduce noise levels while maintaining excellent wear resistance. Plus, their materials are ROHS compliant, which means they don’t require oil.
Hydropower installations are another area where self-lubricating bushings have proven their advantages. They reduce maintenance costs, extend equipment life, and improve environmental benefits. For example, the Newfoundland Power Company uses self-lubricating bushings in the gates of its hydroelectric power plants. These self-lubricating bushings eliminate grease from entering waterways and tailraces. As a result, power companies are able to reduce maintenance and costs.

compared to cartilage in the human body

What is the difference between tendon, bone and cartilage? Human cartilage is composed of collagen and elastic fibers. In contrast, fibrocartilage contains more collagen than hyaline cartilage. Both cartilage types are composed of proteoglycans, which have a protein backbone and glycosaminoglycan side chains. These components work together to provide structure and flexibility to the cartilage.
Bone is a combination of living and dead cells embedded in a matrix. The outer hard layer of bone is dense bone, and the inner layer is spongy, containing bone marrow, blood vessels, nerves, etc. Bone contains both organic and inorganic substances, and this process of hardening of the matrix produces bone. On the other hand, cartilage consists of chondrocytes and a matrix composed of collagen and elastin fibers. Compared to bone, cartilage is yellow and contains elastic fibers.
Although bone and cartilage are structurally identical, cartilage is more flexible. It is mainly found in the joints and respiratory system and requires flexibility. Its ingredients include collagen and proteoglycans, which provide compression and abrasion resistance. Furthermore, connective tissue is composed of cells, fibers and matrix.
The basic substance of cartilage is chondroitin sulfate, which is derived from animals. Although cartilage grows more slowly than bone, its microstructure is less organized. There is a fibrous sheath covering the cartilage, called the perichondrium. The molecular composition of the ECM plays an important role in the function of cartilage. The collagen matrix is ​​important for cartilage remodeling and consists of changes in the collagen matrix.
bushing

Compared to metal-on-bone contact

Both metal-on-bone contact are known to cause a significant increase in the pressures in a joint. To compare the two, we first calculated the joint contact pressures in each model and compared them. The results of this study support previous research on this subject. The following sections discuss the benefits of both types of contact. They also outline some key differences between the two.

China Best Sales 07.1075.01 OEM Crossed Roller Slewing Bearing   wheel bearingChina Best Sales 07.1075.01 OEM Crossed Roller Slewing Bearing   wheel bearing
editor by Dream 2024-04-29

China OEM Low Price Thin Section Angle Angular Contact Ball Bearing Pillow Block Bearing for Agricultural Machinery/Car/Ships/Automotive

Product Description

Product Description

Product Description:

Type • Single Row Four Point Contact Ball Slewing Bearing 
• Single Row Crossed Cylindrical Roller Slewing Bearings
• Double Row Ball Slewing Bearings
•Double Row Roller/Ball Combination Slewing Bearing
•Three-Row Roller Slew Ring Bearing
Rolling elements Steel ball / Cylinder Roller
Rolling elements Material GCr5/GCr15SiMn/Customized
Bearing Material 50Mn/42CrMo/42CrMo4V /Stainless Steel,Alu,Customized
Cage Material Nylon 1571/ Steel /Brass
Structure Taper pin , Mounting holes,Inner ring ,Grease fitting,Load plug, Seals , Roller ,Spacer Balls or separators
Outer diameter 50-10000mm
Bore size 50-10000mm
Mounting hole Through Hole/Tapped hole/Counterbore
Raceway hardness 55-62HRC
Inner and outer ring 
modulation hardness
229-269HB/Customized
Gear type No gear ,Internal gear , External gear.
Embellish grease EP2 lithium lubricating grease
Certificate ABS.BV,DNV,ISO9001,GL,3.1,3.2
Application area Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , off shore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator
Brand Name SoCare-MSI
Place of Origin China
Warranty 18 months
Payment term T/T is our first choice

Packing details

1,Filling with anti-rust oil
2.Corved with Plastic paper
3.Corved with kraft paper 
4.Corved with Blue tie 
5.Put in wooden box

Slewing ring bearings are large-size rolling bearings that can accommodate axial, radial and moment loads acting either singly or in combination and in any direction .They can perform both slewing (oscillating) movements as well as rotational movements. A slewing ring bearing consist of an inner ring, an outer ring and rolling elements (balls or cylindrical rollers) that are separated by polyamide spacers .The rings, 1 of which usually incorporates a gear ,are provided with holes to accommodate attachment bolts. The holes may be threaded. Generally , only the raceways in the rings are hardened and precision-ground.Integral seals made of acrylonitrile-butadiene rubber (NBR) keep the lubricant in, and contaminants out of the bearing. Slewing ring bearings are re-lubricated through grease fittings to reduce maintenance and operating costs.

Compared to traditional CHINAMFG arrangements, slewing ring bearing arrangements provide many design and performance advantages. The compactness and large inner diameter simplify the design of the bearing arrangement and its associated components .The low sectional height of these bearings means that the pinion lever can be kept short. In most cases only flat mounting surfaces on the associated components are needed.

Slewing ring bearings were originally designed to be mounted only on horizontal support structure, but can now be used successfully in vertical bearing arrangements .

Slewing ring bearings perform extremely well in a variety of applications such as:
¤ Access platforms
¤ Bucket wheel excavators
¤ Conveyor booms
¤ Cranes of all type
¤ Small ,medium and large excavators
¤ InHangZhou tables
¤ Ladle turrets
¤ Offshore applications
¤ Robots
¤ Railway bogies
¤ Rotary platforms
¤ Stackers
¤ Solar mirrors
¤ Tunnel boring machines
¤ Wind turbines

Introduction

SCB-XR cross roller bearings

Provides higher level of stiffness while not increasing rotational torque

OD size range up : 11″-209″

Construction

-Cylindrical rollers in V shaped rolling path

-Rollers in alternating axis of roation

-Sealed

-Ring Configuration:

Non geared

External gear

Internal gear

-Grease fittings for lubrication

Applications

-Robotics

-Military

-Machine tools

-Radar

-Satellite

Company Profile

Company  Profile:

                              About SoCare :
The SoCare  brand is synonymous with quality.
Now, we have become an even greater resource for our business partners. Due to embracing technical advances, product support, and service, we have become a truly solutions-oriented supplier.

SoCare  is creating greater value for our partners.

These advances all work together to bring our customers the added benefit of higher productivity. In addition, we provide application specific products, leading edge design simulation tools, on sight engineering support, plant asset efficiency programs, and advanced supply chain management.
             With SoCare  you can expect more!

Application: 
Slewing ring bearings can be widely used in lifting & transport machinery, mining machinery, construction machinery, port hoisting machinery, port oil transfer equipment, onshore and offshore crane, excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipments and other large rotary device.

Packaging & Shipping

Packing & Shipping:

Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;

And then packed with kraft paper and professional belts;

At last, with wooden box totally at the outer packing to invoid the rust or the moist;

We can depend on the customers  demand to be packed.

 

After Sales Service

Our Service:
♥1.Your inquiry will be reply within 2 hours.

♥2.Fast delivery,within 15 working days.

♥3.Packing: you will receive a Perfect product with strong outside packing.

♥4.With advanced first-level facilities and testing equipment,to insure no mistake on the dimension of the bearings.

♥5.MOQ is 2 sets, Because we are manufacturer.

♥6.24 hours on line,no limited to talk to us.

♥7.Return Policy:We gladly accept returns for item purchased within a 15 day period, provided it is still in the original package, not used nor damaged.

♥8.Warranty Claims :The Warranty covers any Defect of the product for a period of 18 months. It does not cover items that are not correctly installed or over tightened which may cause premature failure. Installation or any other fee’s are not refundable.

FAQ

FAQ:

1.Q: Are you trading company or manufacturer ?
A: We are a manufacturing enterprise focusing on bearings and integrating research, production and sales with 20 years’ experience.

2.Q: How long is your delivery time?
A: Generally it is 7 days if the goods are in stock. or it is 15 days if the goods are not in stock, Also it is according to quantity.

3.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.

4.What are the company’s delivery terms?
A:We can accept EXW,FOB,CFR,CIF,etc. You can choose the 1 which is the most convenient cost effective for you.

5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.

6.How many the MOQ of your company?
A:Depending on the size of the bearing, the MOQ is variable, if you are interested, you can contact me for a quote.

7.Does the company accept OEM or customized bearings?
A:In addition to standard products, we also supply non-standard and modified standard products for special application. Meanwhile, we provide OEM service.

8.Can the company provide free samples?
A:We can provide samples for free. You only need to provide shipping.

 

 

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: High Speed, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Spherical Raceway
Material: Alloy
Samples:
US$ 0/Set
1 Set(Min.Order)

|

What maintenance practices are recommended for slewing rings to ensure optimal functionality?

Proper maintenance is essential to ensure the optimal functionality and longevity of slewing rings. Regular maintenance practices help prevent premature wear, minimize downtime, and ensure reliable performance. Here are some recommended maintenance practices for slewing rings:

  • Cleaning: Regularly clean the slewing rings to remove dirt, debris, and contaminants that can cause abrasion and affect the smooth operation of the rolling elements. Use appropriate cleaning agents and methods as recommended by the manufacturer.
  • Lubrication: Adequate lubrication is crucial for the smooth operation and reduced friction of slewing rings. Follow the manufacturer’s recommendations for the type of lubricant, the frequency of lubrication, and the quantity to be applied. Regularly inspect the lubrication system and replenish or replace the lubricant as needed.
  • Inspection: Periodically inspect the slewing rings for any signs of damage, wear, or misalignment. Check for abnormal noise, vibration, or irregularities in motion. Inspect the gear teeth, raceways, seals, and mounting interfaces. If any issues are identified, take appropriate action, such as repair or replacement, to prevent further damage.
  • Torque Checks: Regularly check the torque of the fasteners and bolts that secure the slewing rings. Ensure that they are tightened to the specified torque values. Loose fasteners can cause misalignment and compromise the performance and safety of the slewing rings.
  • Seal Inspection: Inspect the seals of the slewing rings to ensure they are intact and properly functioning. Damaged or worn seals can lead to contamination and loss of lubrication, resulting in increased friction and potential damage to the slewing rings. Replace any damaged seals promptly.
  • Alignment and Mounting: Proper alignment and mounting of slewing rings are critical for their optimal functionality. Ensure that the slewing rings are correctly aligned and securely mounted according to the manufacturer’s specifications. Misalignment or improper mounting can lead to increased stress, premature wear, and reduced performance.
  • Environmental Protection: Take measures to protect the slewing rings from harsh environmental conditions. Shield them from excessive moisture, dust, chemicals, and extreme temperatures whenever possible. Implement appropriate sealing systems and consider the use of protective covers or enclosures, especially in outdoor or exposed applications.
  • Training and Documentation: Provide appropriate training to personnel responsible for the maintenance of slewing rings. Ensure they are aware of the recommended maintenance practices and follow proper procedures. Keep comprehensive documentation of maintenance activities, including lubrication schedules, inspections, repairs, and replacements.

It is important to note that maintenance practices may vary depending on the specific application, environmental conditions, and manufacturer’s recommendations. Always refer to the manufacturer’s guidelines and consult with experts or maintenance professionals when necessary to ensure the most effective maintenance practices for your slewing rings.

How do slewing rings contribute to precise and controlled motion in machinery?

Slewing rings play a crucial role in enabling precise and controlled motion in machinery. Their design and functionality contribute to achieving accurate positioning, smooth rotation, and controlled movement. Here’s a detailed explanation of how slewing rings contribute to precise and controlled motion:

  • Precision Engineering: Slewing rings are meticulously engineered to provide high precision in motion control. The manufacturing processes involve tight tolerances and precise machining to ensure accurate dimensions and alignment of the rolling elements and raceways. This precision engineering minimizes any deviations or errors in motion, allowing for precise positioning and controlled movement.
  • Low Friction and Smooth Rotation: Slewing rings are designed to minimize friction and enable smooth rotation. The rolling elements, whether balls or rollers, are precisely positioned and guided within the raceways of the slewing ring. This design ensures that the rolling elements make contact with the raceways at specific angles, reducing friction during rotation. The low-friction characteristics allow for smooth and controlled motion, enabling precise positioning without undue resistance or jerky movements.
  • Integrated Gear Mechanism: Many slewing rings are equipped with an integrated gear mechanism. The gear teeth on the inner or outer ring of the slewing ring engage with external gears or pinions, providing a means to transmit torque and control rotational motion. The gear mechanism allows for precise and controlled movement, enabling operators or automated systems to achieve accurate positioning and controlled rotation at desired speeds.
  • Backlash Control: Backlash refers to the slight play or clearance between mating gears or components. Slewing rings are designed to minimize backlash, particularly in applications that require precise motion control. By reducing or eliminating backlash, slewing rings ensure that there is minimal lost motion or error when initiating rotational movement or changing direction. This feature contributes to improved accuracy and controlled motion.
  • Stiffness and Rigidity: Slewing rings are designed to provide high stiffness and rigidity, minimizing deflection or deformation during operation. This characteristic is especially important in applications where precise and controlled motion is required. The high stiffness of slewing rings ensures that the applied forces and torques are efficiently transmitted, allowing for accurate positioning and controlled motion without significant distortion or flexing.
  • Positioning Sensors and Feedback Systems: In conjunction with slewing rings, machinery often incorporates positioning sensors and feedback systems. These sensors and systems provide real-time data on the position, speed, and rotation of the slewing ring. By continuously monitoring and adjusting the motion based on the feedback, precise and controlled movement can be achieved, enabling accurate positioning and motion control.

Overall, slewing rings contribute to precise and controlled motion in machinery through their precision engineering, low friction, integrated gear mechanisms, backlash control, stiffness, and compatibility with positioning sensors and feedback systems. These features ensure accurate positioning, smooth rotation, and controlled movement, making slewing rings essential components for applications that require precise motion control in various industries such as construction, material handling, robotics, and manufacturing.

Can slewing rings be customized for specific industries or machinery configurations?

Yes, slewing rings can be customized to meet the specific requirements of different industries or machinery configurations. Customization allows slewing rings to be tailored to suit unique applications, operating conditions, and integration needs. Here’s a detailed explanation of how slewing rings can be customized:

Slewing ring manufacturers understand that different industries and machinery configurations may have specific demands that require customized solutions. By working closely with customers and understanding their requirements, slewing ring manufacturers can offer the following customization options:

  • Dimensions and Load Capacity: Slewing rings can be customized in terms of their dimensions, such as outer diameter, inner diameter, and height, to fit specific space constraints or load requirements. This ensures that the slewing ring can be seamlessly integrated into the machinery or equipment.
  • Mounting Interfaces: Customized slewing rings can be designed with specific mounting interfaces to match the existing or planned machinery configuration. This facilitates easy installation and compatibility with other components.
  • Gear Specifications: For applications that require integrated gears, slewing rings can be customized with specific gear specifications. This includes the number of teeth, module, pressure angle, gear quality, and backlash requirements. Customized gear specifications ensure smooth and precise motion control.
  • Sealing Systems: Slewing rings can be customized with sealing systems to provide protection against environmental factors such as dust, water, and contaminants. Different sealing options, such as labyrinth seals, lip seals, or combination seals, can be tailored to meet the specific requirements of the application.
  • Materials and Coatings: Customization allows slewing rings to be manufactured using different materials and surface coatings to enhance their performance in specific industries or operating conditions. Materials such as stainless steel, heat-treated steels, or corrosion-resistant alloys can be chosen based on factors like temperature, corrosion resistance, or weight considerations.
  • Specialized Features: Depending on the industry or application, slewing rings can be customized with specialized features. This may include integrated sensors for position feedback, temperature sensors, or additional functionalities like locking mechanisms, lubrication systems, or anti-corrosion treatments.

The ability to customize slewing rings for specific industries or machinery configurations ensures that the resulting solution is optimized for performance, reliability, and longevity in the intended application. Customization allows for a precise match between the slewing ring and the machinery, considering factors such as space constraints, load requirements, environmental conditions, and integration needs.

It is important to work closely with slewing ring manufacturers or suppliers who have expertise in customization and can provide engineering support to develop the most suitable solution for the specific industry or machinery configuration. By leveraging customization options, industries can benefit from slewing rings that are specifically designed to meet their unique requirements and optimize the performance of their machinery or equipment.

China OEM Low Price Thin Section Angle Angular Contact Ball Bearing Pillow Block Bearing for Agricultural Machinery/Car/Ships/Automotive  China OEM Low Price Thin Section Angle Angular Contact Ball Bearing Pillow Block Bearing for Agricultural Machinery/Car/Ships/Automotive
editor by Dream 2024-04-25

China OEM Qnd1200*28 Slewing Bearing Ring for Excavator PC200-6 (1)

Product Description

Slewing ring bearing is also called slewing ring, slewing bearing, turntable bearing, and rotary bearing. 
Slewing ring bearing is a bearing that able to bear axial load, radial load and overturning torque. Under normal circumstances, slewing ring bearings have their own mounting holes, lubricant holes and seal holes, to meet the different needs of the various host working under the various conditions; 
On the other hand, slewing ring bearing itself has characteristics of compact structure, guide rotating convenient, easy to install and maintaining easily. 
2. Structure
2.1 Slewing ring bearings have different types as per different structures, here below is what we offering now: 
Single row ball slewing ring bearings 
Double row ball slewing ring bearings
Crossed roller slewing ring bearings 
Three row roller slewing ring bearings 
Flange slewing ring bearings
2.2 The above slewing ring bearings can also be divided into 3 different types as per different transmissions:
Slewing ring bearings with no gear
Slewing ring bearings with external gear
Slewing ring bearings with internal gear
3. Features: 
Slewing ring bearings have more features: compact structure, reliable guide, simple installation, and easily maintenance
 
4. Application: 
Slewing ring bearings can be widely used in lifting & transport machinery, mining machinery, construction machinery, port hoisting machinery, port oil transfer equipment, onshore and offshore crane, excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, wind power generator, other construction and industry machines or equipments and other large rotary device
Single row ball slewing ring bearing:

1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at 4 points, via which the axial force, radial force and resultant moment may be born simultaneously.

2.2. Structure
Slewing ring bearings have different types as per different structures, here below is what we offering now:
Single row ball slewing bearing has 3 different types:
Single row ball slewing bearing with no gear 
Single row ball slewing bearing with external gear 
Single row ball slewing bearing with internal gear 
Single row ball slewing ring bearing
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The single row ball slewing ring bearing is composed of 2 seat-rings. The balls contact with the circular race at 4 points, via which the axial force, radial force and resultant moment may be born simultaneously.
 
2. Structure
 
Slewing ring bearings have different types as per different structures, here below is what we offering now:
Single row ball slewing bearing has 3 different types:
Single row ball slewing bearing with no gear 
Single row ball slewing bearing with external gear 
Single row ball slewing bearing with internal gear 

3. Features
Single row ball slewing ring bearings have following features:
Compact in structure and light in weight.
 
4. Application: 
Single row ball slewing ring bearings are widely used in slewing conveyers, welding arm and positioned, medium duty cranes, excavators and other engineering machines
Double row ball slewing ring bearing:
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The double row ball slewing bearing has 3 seat-rings. The steel balls and the retainers may be directly arranged into the upper and lower racers. Two rows of steel balls with different diameters are fitted according to the force. Such open type fitting is extraordinary convenient, the loading angels at upper and lower races are 90°which can carry both of the axial force and capsizing moment. When the radial force is larger than 1/10 of the axial force, the races should be newly designed.
 
2. Structure:
Double row ball slewing bearing has 3 different types:
Double row ball slewing bearing with no gear
Double row ball slewing bearing with external gear 
Double row ball slewing bearing with internal gear 
 
3. Features:
Double row ball slewing ring bearings have following features:
Larger dimension of axial and radial and compact structure.
 
4. Application:
Double row ball slewing ring bearings are widely used in Tower cranes which require working radius over medium range, auto crane and loading (unloading) machinery.
 Double row ball slewing ring bearing:
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
The double row ball slewing bearing has 3 seat-rings. The steel balls and the retainers may be directly arranged into the upper and lower racers. Two rows of steel balls with different diameters are fitted according to the force. Such open type fitting is extraordinary convenient, the loading angels at upper and lower races are 90°which can carry both of the axial force and capsizing moment. When the radial force is larger than 1/10 of the axial force, the races should be newly designed.
 
2. Structure:
Double row ball slewing bearing has 3 different types:
Double row ball slewing bearing with no gear
Double row ball slewing bearing with external gear 
Double row ball slewing bearing with internal gear 

3. Features:
Double row ball slewing ring bearings have following features:
Larger dimension of axial and radial and compact structure.
 
4. Application:
Double row ball slewing ring bearings are widely used in Tower cranes which require working radius over medium range, auto crane and loading (unloading) machinery.
Crossed roller slewing ring bearing
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
With the cross roller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90° groove, separated from each other by a spacer retainer.  This design allows just 1 bearing to receive loads in all directions including, radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.
 
2. Structure:
Cross roller slewing bearing has 3 different types:
Cross roller ball slewing bearing with no gear 
Cross roller ball slewing bearing with external gear 
Cross roller ball slewing bearing with internal gear 

3. Features
Cross roller slewing ring bearings have following features:
1. High precision: cross roller bearings can be made high precision bearings, at P4, P2.
2. High rigidity: These series roller bearings are with preload.
3. High load capacity: This series roller bearing can support axial load, radial load, and tilting load.
4. Small volume: this series roller bearing can save space for the machine.
 
4. Application 
Cross roller slewing rings are widely applied in the precision rotary table, rotary joint of manipulator, medical equipment, and measuring instrument etc
Triple row roller slewing ring bearing 
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
Three row roller slewing ring bearing has 3 seat-rings, which separate the upper, lower and radial raceway, via which the load of each row of the rollers may be specified. Thus it can carry different load simultaneously and its load capacity is the largest 1 of the 4 types
 
2. Structure:
Triple row roller slewing bearing has 3 different types:
Triple row roller slewing bearing with no gear
Triple row roller slewing bearing with external gear 
Triple row roller slewing bearing with internal gear 
 
3. Features   
Triple row roller slewing ring bearings have following features:
Larger axial and radial dimension, compact structure
 
4. Application
Triple row roller slewing rings are widely used in heavy-duty machines which require large working radius, such as bucket-wheel excavators, wheeled cranes, ship cranes, ladle turret, auto cranes etc.
 
Flange Slewing Bearing
1.Slewing bearing is also called slewing ring, slewing ring bearing, turntable bearing, and rotary bearing. 
Flange slewing bearing is a special slewing ring bearing, it can have 1 flange in the outer ring, or 1 flange in the inner ring, even it can have 1 flange in both inner ring and outer ring.
 
2. Structure:
Flange slewing bearing has 3 different types:
Flange slewing bearing with no gear
Flange slewing bearing with external gear 
Flange slewing bearing with internal gear 
 
3. Features   
Flange slewing bearings have following features:
Compact structure and easily installment.
 
4. Application
Flange slewing bearings are widely used in tow truck, and other applications are the same as slewing bearings, such as lifting & transport machinery, mining machinery, construction machinery, excavator, concrete machine, paper machine, plastic and rubber machine and steel plant.
 
Excavator Slewing Bearing
Excavator slewing bearing is a special slewing ring bearing as per its applications. And it is a very important part for excavators, we can supply excavator slewing bearings for both second-hand excavators for maintenance and new excavators.
 
2. Structure:
Excavator slewing bearing are usually made as per single row ball slewing bearing structure, and most of them are internal gear types, but some are external gear types.
 
3. Features   
Excavator slewing bearings have familiar features as single row ball slewing ring bearings.
Compact structure, light weight and easily installment.
 
4. Application
Excavator slewing bearings are widely used for all brands of excavators, such as Komatsu, Hitachi, Kobelco, Sumitomo, Doosan, Hyundai, Samsung, Caterpillar, Daewoo, Kato, Volvo, CHINAMFG and so on.

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard: Standard
Feature: High Speed, Vacuum, Antimagnetic, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Spherical Raceway
Material: Bearing Steel
Samples:
US$ 1/Set
1 Set(Min.Order)

|

Customization:
Available

|

What are the signs that indicate a need for slewing ring replacement or maintenance, and how can they be diagnosed?

When it comes to slewing rings, certain signs indicate the need for replacement or maintenance to ensure optimal performance and prevent potential failures. Here’s a detailed explanation of the signs that indicate a need for slewing ring replacement or maintenance, along with methods for diagnosis:

  • Unusual Noise: Unusual noises, such as grinding, clicking, or squealing sounds, during the operation of rotating systems may indicate a problem with the slewing ring. These noises can be caused by worn-out or damaged rolling elements, insufficient lubrication, misalignment, or other issues. Diagnosis involves conducting a thorough inspection of the slewing ring and its components to identify the source of the noise and determine the appropriate course of action.
  • Abnormal Vibration: Excessive vibration during the operation of rotating systems can be a warning sign of a faulty slewing ring. It may indicate misalignment, imbalanced loads, damaged rolling elements, or worn-out bearings. Vibration analysis techniques, such as using vibration sensors or analyzers, can help diagnose the source and severity of the vibration. Based on the analysis results, appropriate maintenance or replacement actions can be taken.
  • Irregular Movement: Any irregular movement or jerking motion of the rotating system can be an indication of a problem with the slewing ring. It may be caused by damaged or worn-out teeth on the slewing ring, misalignment, or inadequate lubrication. Visual observation of the system’s movement during operation can help identify any irregularities. Additionally, conducting a detailed inspection of the slewing ring and its teeth can provide further insight into the issue.
  • Increased Friction: If there is a noticeable increase in friction or resistance during the rotation of the system, it could be a sign of a problem with the slewing ring. This may be due to insufficient or contaminated lubrication, damaged rolling elements, or misalignment. Diagnosis involves checking the lubrication levels and quality, inspecting the rolling elements for signs of damage, and verifying the alignment of the slewing ring.
  • Uneven or Excessive Wear: Visual inspection of the slewing ring can reveal signs of uneven or excessive wear. This can manifest as worn-out or pitted rolling elements, damaged or missing teeth, or abnormal wear patterns on the raceways. Regular inspections and comparing the current condition with the manufacturer’s specifications or previous inspection records can help diagnose the level of wear and determine if maintenance or replacement is necessary.
  • Leakage or Contamination: Leakage of lubricant or the presence of contaminants, such as dirt, water, or debris, in the slewing ring assembly can be indicative of a problem. It may lead to inadequate lubrication, accelerated wear, or corrosion. Visual inspection of the slewing ring and any associated seals or gaskets can help identify any signs of leakage or contamination. Addressing the source of the leakage and ensuring proper sealing is essential to maintain the integrity and performance of the slewing ring.
  • Reduced Load-Carrying Capacity: If the rotating system experiences difficulty in handling its intended loads or shows signs of decreased load-carrying capacity, it may indicate an issue with the slewing ring. Factors such as worn-out rolling elements, damaged raceways, or misalignment can contribute to the reduction in load-carrying capacity. Performance testing and comparing the system’s current capabilities with its original specifications can help diagnose any loss in load-carrying capacity.

In summary, signs that indicate a need for slewing ring replacement or maintenance include unusual noise, abnormal vibration, irregular movement, increased friction, uneven or excessive wear, leakage or contamination, and reduced load-carrying capacity. These signs can be diagnosed through visual inspections, vibration analysis, performance testing, and comparing the observed conditions with the manufacturer’s specifications. Early detection and timely maintenance or replacement of the slewing ring can prevent further damage, ensure safe operation, and extend the lifespan of the rotating system.

Can slewing rings be customized for specific industries or machinery configurations?

Yes, slewing rings can be customized to meet the specific requirements of different industries or machinery configurations. Customization allows slewing rings to be tailored to suit unique applications, operating conditions, and integration needs. Here’s a detailed explanation of how slewing rings can be customized:

Slewing ring manufacturers understand that different industries and machinery configurations may have specific demands that require customized solutions. By working closely with customers and understanding their requirements, slewing ring manufacturers can offer the following customization options:

  • Dimensions and Load Capacity: Slewing rings can be customized in terms of their dimensions, such as outer diameter, inner diameter, and height, to fit specific space constraints or load requirements. This ensures that the slewing ring can be seamlessly integrated into the machinery or equipment.
  • Mounting Interfaces: Customized slewing rings can be designed with specific mounting interfaces to match the existing or planned machinery configuration. This facilitates easy installation and compatibility with other components.
  • Gear Specifications: For applications that require integrated gears, slewing rings can be customized with specific gear specifications. This includes the number of teeth, module, pressure angle, gear quality, and backlash requirements. Customized gear specifications ensure smooth and precise motion control.
  • Sealing Systems: Slewing rings can be customized with sealing systems to provide protection against environmental factors such as dust, water, and contaminants. Different sealing options, such as labyrinth seals, lip seals, or combination seals, can be tailored to meet the specific requirements of the application.
  • Materials and Coatings: Customization allows slewing rings to be manufactured using different materials and surface coatings to enhance their performance in specific industries or operating conditions. Materials such as stainless steel, heat-treated steels, or corrosion-resistant alloys can be chosen based on factors like temperature, corrosion resistance, or weight considerations.
  • Specialized Features: Depending on the industry or application, slewing rings can be customized with specialized features. This may include integrated sensors for position feedback, temperature sensors, or additional functionalities like locking mechanisms, lubrication systems, or anti-corrosion treatments.

The ability to customize slewing rings for specific industries or machinery configurations ensures that the resulting solution is optimized for performance, reliability, and longevity in the intended application. Customization allows for a precise match between the slewing ring and the machinery, considering factors such as space constraints, load requirements, environmental conditions, and integration needs.

It is important to work closely with slewing ring manufacturers or suppliers who have expertise in customization and can provide engineering support to develop the most suitable solution for the specific industry or machinery configuration. By leveraging customization options, industries can benefit from slewing rings that are specifically designed to meet their unique requirements and optimize the performance of their machinery or equipment.

Can you explain the impact of slewing rings on the overall efficiency of rotating systems?

Slewing rings play a crucial role in the overall efficiency of rotating systems. Their design, performance, and proper functioning significantly impact the efficiency, performance, and reliability of various rotating systems. Here’s a detailed explanation of the impact of slewing rings on the overall efficiency of rotating systems:

  • Rotational Movement: Slewing rings enable smooth and controlled rotational movement in rotating systems. They support the rotation of components such as booms, arms, platforms, or structures with minimal friction and resistance. By minimizing energy losses due to friction, slewing rings contribute to the overall efficiency of the system.
  • Precision and Accuracy: Slewing rings provide precise and accurate motion control in rotating systems. They ensure smooth and controlled rotation, allowing for precise positioning, alignment, or tracking of components. The ability to achieve precise movements reduces the need for corrective actions and enhances the overall efficiency and productivity of the system.
  • Load-Bearing Capacity: Slewing rings are designed to handle significant loads in rotating systems. They provide robust load-bearing capabilities, distributing the load evenly and minimizing stress concentrations. By efficiently carrying and transferring loads, slewing rings optimize the system’s load capacity and prevent premature wear or failure of components.
  • Reduction of Friction and Wear: Properly lubricated and maintained slewing rings help reduce friction and wear in rotating systems. They minimize the energy losses associated with friction, resulting in improved efficiency. Reduced friction also decreases the wear and tear on the components, prolonging their lifespan and reducing the need for frequent repairs or replacements.
  • Stability and Safety: Slewing rings provide stability and safety to rotating systems. They ensure the smooth and stable rotation of components, minimizing vibrations, wobbling, or unintended movements. This stability not only enhances the system’s efficiency but also improves the safety of operations, reducing the risk of accidents or damage to the equipment and surrounding environment.
  • Impact on Power Transmission: Slewing rings are often integrated with power transmission systems in rotating systems. They efficiently transmit power from the drive source to the rotating components, ensuring the effective transfer of torque and rotational force. By optimizing power transmission, slewing rings contribute to the overall efficiency and performance of the system.
  • System Integration and Versatility: Slewing rings are designed to integrate seamlessly into various rotating systems. They can be customized to meet specific requirements, such as size, load capacity, or environmental conditions. The versatility of slewing rings allows for their efficient integration into different applications, enhancing the overall efficiency and adaptability of the rotating systems.

In summary, slewing rings have a significant impact on the overall efficiency of rotating systems. Their contribution to smooth rotational movement, precision, load-bearing capacity, reduction of friction and wear, stability, power transmission, system integration, and versatility all play a vital role in maximizing the efficiency, performance, and reliability of various rotating systems in industries such as construction, material handling, energy, transportation, and manufacturing.

China OEM Qnd1200*28 Slewing Bearing Ring for Excavator PC200-6 (1)  China OEM Qnd1200*28 Slewing Bearing Ring for Excavator PC200-6 (1)
editor by CX 2024-04-11

China OEM Korea Swing Bearing (SLBI 1839 SLBI 2235 SLBI 2440) Internal Gear Slewing Bearing Ring for Marine Crane Turntable Bearing

Product Description

Please see details for  slewing ring bearing, 
SLBI single row ball slewing ring bearing 4 point contact ball swing bearing with internal gear
SLBI 1235
SLBI 1346
SLBI 1472
SLBI 1584
SLBI 1677
SLBI 1792
SLBI 1839
SLBI 2055
SLBI 2235
SLBI 2440

If you need more details, please feel free to contact us for designing and producing, Attn: Susan Yang
 

four point contact ball slewing bearing with internal gear
SLBI 292 SLBI385 SLBI 468 SLBI 590 SLBI 640
SLBI 784 SLBI 843 SLBI 963 SLBI 1083 SLBI 1162
SLBI 1235 SLBI 1346 SLBI 1472 SLBI 1584 SLBI 1677
SLBI 1792 SLBI 1839 SLBI 2055 SLBI 2235 SLBI 2440
four point contact ball slewing bearing with external gear
SLBO360 SLBO415 SLBO460 SLBO552 SLBO600
SLBO660 SLBO736 SLBO824 SLBO864 SLBO976
SLBO1140 SLBO1392 SLBO1552 SLBO1670 SLBO2030
SLBO2244 SLBO2590 SLBO2870 SLBO2960  
four point contact ball slewing bearing without gear teeth
SLB 350 SLB 430 SLB 544 SLB 616 SLB 753
SLB 850 SLB 916 SLB 1035 SLB 1120 SLB 1218
SLB 1366 SLB 1550 SLB 2550 SLB 2950  

1. Why choose CHINAMFG slewing bearings
Who we are?
We (HangZhou CHINAMFG special heavy-duty and large bearing manufacturing CO., LTD) are a professional
bearing manufacturer in the world, established in 2000, specializing in slewing bearings, slewing drives
and special bearings, with design, production, sales, marketing and service from OD200mm to 8000mm.
For 18 years experiences, our bearings have flied to more than 50 countries.

Our technical team:
We have 60 employees, with 6 experienced engineers and professional technicists.
All our bearings are designed by CAD-programs, made according to customers’ special demands.
Our technical team can also verify safety & reliability depending on the load case and the strength of raceway
as well as gear and bolt connections.

Manufacturing:
Equipped with advanced manufacturing equipments and test instruments, all bearings are of uniform marking
and packing with superior quality, reasonable prices and perfect services.

Quality:
We have been certificated by ISO9001:2008, and we are also aligned to international quality standards
from application consulting and engineering to productions, examinations, documentations and dispatch.
We will prepare additional test reports if customers need.

2. Structure of CHINAMFG slewing bearings
Main Types:
Single row ball slewing ring bearings
Double row ball slewing ring bearings
Crossed roller slewing ring bearing
Three row cylindrical roller slewing bearings
BALL & ROLLER combined slewing bearings
Flanged slewing ring bearing
Gear Type:
Slewing bearings with external gear
Slewing bearings with internal gear
Slew bearings without gear
Flange type:
Slewing bearings with external flange and internal gear
Slew rings with internal flange and external gear
Slew bearings with external and internal flange

3. About CHINAMFG bearings Advantages:
3.1 introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square CHINAMFG with 4 workshop and 1 office building. 
3.2 Featured products: slewing bearing and slewing drive
3.3 Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
3.4 Workers: 60
3.5 Certificate: ISO9001:2008, 3.1 certificate, CCS certificate
All CHINAMFG slew rings can betested by the 3rd party inspection organization if customer requires, such as BV, CCS, SGS, LR, ABS and so on. All swing bearings inspection reports will be supplied to customers, including raw material certificate, heat treatment certificate, UT&PT and so on.
3.6 Annual Exportation: 8 million USD
3.7 Warranty Period: All CHINAMFG slewing ring bearings have a warranty period of 18 months, for some special working condition, warranty period can be lengthened to 3-4 years.
3.8 Production Time: All CHINAMFG slewing ring bearings can be usually delivered timely, usual production time is 15-50 days based on different slew bearings diameters, sometimes slew rings will be in stock.
3.9 Technical Control
All CHINAMFG slewing ring bearings are forged rings with material steel 50Mn or 42CrMo, slewing rings are machined by CNC lathe, slew bearings raceway are quenched via medium-frequency hardening with hardness 55-60HRC, turntable bearings are drilled holes by CNC drilling machine, slew gears are machined by hobbing machine with gear quenched if required, swing bearings then are grinded by grinding machine with higher precision.

4. CHINAMFG Slewing Bearing Packing 
4.1 Basic Packing
Bearing surface is covered with the anti-rust oil first; and then wrapped with the plastic film;
And then packed with kraft paper and professional belts;
At last, with wooden box totally at the outer packing to invoid the rust or the moist;
We can depend on the customers  demand to be packed;

4.2 CHINAMFG slewing ring bearings can be packed by different ways.
If bearing diameter is less than 2300mm, slewing rings will be usually packed by square plywood case.
If bearing diameter is more than 2300mm, slewing rings can be packed by square plywood case, round plywood case, or steel tripod. Every package way can be totally kept goods safely.

5. CHINAMFG Slewing Bearing Transportation:
Slewing bearings can be offered different delivery terms, such as EXW, FOB, CIF, DDU and so on.
Also, slewing rings can be transported by different transport ways, by express (such as DHL, TNT, UPS, FEDEX and so on), by air, by sea, by truck, by railway and so on.
SHILLA 4 point contact ball slewing ring swing bearing with external gear
SLBO360
SLBO415
SLBO460
SLBO552
SLBO600
SLBO660
SLBO736
SLBO824
SLBO864
SLBO976
SLBO1140
SLBO1392
SLBO1552
SLBO1670
SLBO2030
SLBO2244
SLBO2590
SLBO2870
SLBO2960

SHILLA 4 point contact ball slewing ring swing bearing with internal gear
SLBI 292
SLBI 385
SLBI 468
SLBI 590
SLBI 640
SLBI 784
SLBI 843
SLBI 963
SLBI 1083
SLBI 1162
SLBI 1235
SLBI 1346
SLBI 1472
SLBI 1584
SLBI 1677
SLBI 1792
SLBI 1839
SLBI 2055
SLBI 2235
SLBI 2440

SHILLA 4 point contact ball slewing ring swing bearing without gear
SLB 350
SLB 430
SLB 544
SLB 616
SLB 753
SLB 850
SLB 916
SLB 1035
SLB 1120
SLB 1218
SLB 1366
SLB 1550
SLB 2550
SLB 2950

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Standard or Nonstandard: Standard
Feature: Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Deep Groove Raceway
Material: 50mn or 42CrMo
Samples:
US$ 1200/Piece
1 Piece(Min.Order)

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Customization:
Available

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What is a slewing ring, and how is it used in mechanical systems?

A slewing ring, also known as a slewing bearing or turntable bearing, is a specialized type of rolling element bearing that enables rotational movement between two components. It consists of an inner ring, an outer ring, rolling elements (such as balls or rollers), and often a gear mechanism. Slewing rings are used in mechanical systems where there is a need for smooth and controlled rotation. Here’s a detailed explanation of what a slewing ring is and how it is used:

  • Structure and Components: A slewing ring typically has a large diameter compared to its thickness, allowing it to support axial, radial, and moment loads. The inner and outer rings have raceways that the rolling elements move along. The rolling elements, which can be balls or rollers, distribute the load and facilitate smooth rotation. In some cases, a gear mechanism is integrated into the slewing ring, allowing it to act as a rotational drive system.
  • Rotational Movement: The primary function of a slewing ring is to enable rotational movement between two components. It provides a stable and low-friction interface that allows one component to rotate relative to the other. The rolling elements within the raceways minimize friction and distribute the load evenly, resulting in smooth and controlled rotation. Slewing rings can support both continuous rotation and intermittent or oscillating movement, depending on the application requirements.
  • Load Support: Slewing rings are designed to support various types of loads. They can handle axial loads, which are forces acting parallel to the axis of rotation, as well as radial loads, which are forces acting perpendicular to the axis of rotation. Additionally, slewing rings can accommodate moment loads, which are a combination of axial and radial loads that create bending or twisting forces. The load-carrying capacity of a slewing ring depends on factors such as its size, design, and choice of rolling elements.
  • Applications: Slewing rings find applications in a wide range of mechanical systems across different industries. Some common uses include:
  • Construction and Cranes: Slewing rings are extensively used in construction machinery, cranes, and mobile equipment. They enable 360-degree rotation of the boom or jib, allowing for efficient material handling and positioning.
  • Wind Turbines: Slewing rings are crucial components in wind turbine systems. They support the rotor, allowing it to rotate according to wind direction, and provide a connection between the rotor and the nacelle, enabling yaw movement.
  • Industrial Equipment: Slewing rings are utilized in various industrial equipment, including indexing tables, turntables, robotic arms, and packaging machinery. They facilitate precise and controlled rotation in these applications.
  • Transportation and Automotive: Slewing rings are employed in transportation and automotive applications, such as vehicle cranes, aerial platforms, and rotating platforms for heavy-duty vehicles. They enable safe and smooth rotation in these specialized systems.
  • Medical and Rehabilitation Equipment: Slewing rings are used in medical and rehabilitation equipment, such as patient lifts and adjustable beds. They allow for smooth and controlled movement, aiding in patient care and mobility assistance.

In summary, a slewing ring is a specialized bearing that enables controlled rotational movement between components in mechanical systems. Its ability to support various loads, provide smooth rotation, and accommodate different applications makes it a valuable component in a wide range of industries.

What advantages do slewing rings offer compared to other rotational components?

Slewing rings offer several advantages compared to other rotational components. Their unique design and features make them a preferred choice in various applications. Here’s a detailed explanation of the advantages that slewing rings offer:

  • Compact Design: Slewing rings have a compact design that allows for efficient use of space. Compared to other rotational components such as gears and bearings, slewing rings provide a compact solution for supporting axial, radial, and moment loads while enabling rotational motion. Their compactness is especially advantageous in applications with limited space or weight constraints.
  • High Load-Carrying Capacity: Slewing rings are designed to handle significant loads. They are capable of supporting both axial and radial loads, as well as moment loads that result from uneven weight distribution or external forces. The robust construction and precise engineering of slewing rings enable them to withstand heavy loads, making them suitable for applications that require high load-carrying capacity.
  • Smooth Rotation: Slewing rings offer smooth rotation, allowing for precise and controlled motion. The rolling elements, whether balls or rollers, are positioned and guided within the raceways of the slewing ring to minimize friction and ensure smooth movement. This smooth rotation contributes to precise positioning and controlled motion, which is essential in applications that require accurate positioning and smooth operation.
  • Integrated Gear Mechanism: Many slewing rings come with an integrated gear mechanism. This eliminates the need for additional gearing components, simplifies the design, and reduces assembly time and costs. The integrated gear mechanism allows for torque transmission and rotational control, enabling precise and controlled motion without the need for external gearing systems.
  • Backlash Control: Slewing rings can be designed with minimal backlash, ensuring precise motion control. Backlash refers to the play or clearance between mating gears or components, which can lead to lost motion or inaccuracies in positioning. By minimizing backlash, slewing rings offer improved accuracy and repeatability in motion control applications.
  • Versatility and Customization: Slewing rings are highly versatile and can be customized to meet specific application requirements. They can be tailored in terms of dimensions, load capacity, mounting interfaces, gear specifications, sealing systems, and materials. This versatility allows slewing rings to be optimized for various industries and applications, ensuring the best performance and compatibility.
  • Durable and Low Maintenance: Slewing rings are designed to be durable and require minimal maintenance. They are constructed with high-quality materials, precision manufacturing, and appropriate sealing systems to withstand harsh operating conditions and contaminants. This durability and low maintenance requirement contribute to the long service life and reliability of slewing rings.

Overall, slewing rings offer advantages such as compact design, high load-carrying capacity, smooth rotation, integrated gear mechanism, backlash control, versatility, customization options, and durability. These advantages make slewing rings a preferred choice in various applications, including construction machinery, material handling equipment, cranes, wind turbines, robotics, and manufacturing systems.

In what industries or scenarios are slewing rings commonly employed?

Slewing rings find extensive use in various industries and scenarios where controlled rotational movement and load-bearing capabilities are required. Here’s a detailed explanation of the industries and scenarios where slewing rings are commonly employed:

  • Construction and Heavy Machinery: Slewing rings are widely used in the construction industry for applications such as cranes, excavators, and concrete pumps. They enable the rotation of booms and arms, allowing for efficient material handling, precise positioning, and heavy load support.
  • Wind Energy: Slewing rings play a crucial role in wind turbines. They support the rotor and enable the yaw and pitch movements necessary to optimize wind capture and power generation. Slewing rings in wind turbines must handle substantial loads and operate reliably in harsh environmental conditions.
  • Industrial Automation: In industrial automation, slewing rings are employed in indexing tables, turntables, robotic arms, and packaging machinery. They enable precise and controlled rotation, facilitating automated processes, assembly lines, and material handling systems.
  • Transportation and Automotive: Slewing rings are commonly used in transportation and automotive applications, including vehicle cranes, truck-mounted cranes, aerial platforms, and rotating platforms for heavy-duty vehicles. They provide stable connections and controlled rotation, supporting tasks such as loading and unloading cargo or enabling safe access to elevated areas.
  • Marine and Offshore: Slewing rings are extensively employed in marine and offshore equipment, including ship cranes, davits, and rotating platforms on ships and offshore rigs. They withstand corrosive marine environments and heavy loads, enabling lifting operations and controlled rotation in challenging conditions.
  • Aerospace and Defense: Slewing rings are vital components in aerospace and defense applications, such as radar systems, missile launchers, and satellite antennas. They facilitate precise rotational movements required for tracking, targeting, and communication systems, and must meet stringent requirements for reliability and precision.
  • Medical and Rehabilitation: Slewing rings are used in medical and rehabilitation equipment like patient lifts, adjustable beds, and examination tables. They enable smooth and controlled movement, aiding in patient transfers, positioning, and providing comfort and support.

These are just a few examples of the industries and scenarios where slewing rings are commonly employed. Their versatility, load-bearing capacity, and ability to facilitate controlled rotation make them essential components in a wide range of applications across industries such as construction, renewable energy, industrial automation, transportation, marine, aerospace, and healthcare.

China OEM Korea Swing Bearing (SLBI 1839 SLBI 2235 SLBI 2440) Internal Gear Slewing Bearing Ring for Marine Crane Turntable Bearing  China OEM Korea Swing Bearing (SLBI 1839 SLBI 2235 SLBI 2440) Internal Gear Slewing Bearing Ring for Marine Crane Turntable Bearing
editor by CX 2024-04-09