Tag Archives: bearing turntable

China supplier Outer Gear Turntable Bearing Slewing Ring for Excavator

Product Description

Product Description

 

With the tough, heavy-duty conditions of the mining industry, excavators, bucket wheel excavators and stackers / reclaimers are up against a real challenge. Slewing bearing solutions are vital for the performance and reliability of these applications.

 

Thanks to a high carrying capacity and high resistance to overturning moments, King Steel slewing bearing solutions improve:

 

* Machinery reliability
* Operator comfort
* Working accuracy
And, as a result, increase the availability and productivity of the excavator.

 

King Steel slewing bearing solutions are available in different designs to meet the requirements of mini excavators as well as giant shovels. With an Ruding Steel centralized lubrication system, the Ruding Steel slewing bearing solutions become even more efficient. 

Specifications:

Product Name

High Precision Slewing Bearing

Material

Chrome Steel

Operating Temperature

-40°C ~ +50°C

Heat treatment

Quenching and tempering, Raceway induction quenching

Standard

EN 15714 2.2; EN 15714 3.1.B ; EN15714 3.1.C

Features

Four Point Contact

Application

Crane, Excavator, all kinds of machine

Manufacturing Process:
Forging ring body material — Rough Lathing — Raceway heat treatment — Drilling — Teeth cutting — Teeth heat treatment — Ball hardness inspection — Assembling — Finall inspection — Packaging

Packaging & Shipping

Contact us

 

Please contact us for more information and quotations.
  /* 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: Non-Seal
Samples:
US$ 1000/Piece
1 Piece(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.

What are the different types and configurations of slewing rings available in the market?

Slewing rings are available in various types and configurations to cater to the diverse needs of different applications. The following are the different types and configurations of slewing rings commonly available in the market:

  • Single-Row Ball Slewing Rings: This type of slewing ring consists of a single row of balls placed between two rings. It offers compact design, low weight, and high load-carrying capacity. Single-row ball slewing rings are commonly used in applications where axial and radial loads need to be supported.
  • Double-Row Ball Slewing Rings: Double-row ball slewing rings have two rows of balls, providing higher load-carrying capacity compared to single-row designs. They are suitable for applications that require increased load capacity and improved stiffness.
  • Three-Row Roller Slewing Rings: Three-row roller slewing rings feature three rows of rollers arranged in a crisscross pattern. This configuration allows for higher load-carrying capacity and increased rigidity. Three-row roller slewing rings are commonly used in heavy-duty applications where significant radial, axial, and moment loads need to be supported.
  • Ball and Roller Combination Slewing Rings: In some cases, slewing rings are designed with a combination of ball and roller elements. This configuration provides a balance between load capacity and reduced friction. It offers improved rotational characteristics and is often used in applications requiring high load capacity and smooth rotation.
  • Internal Gear and External Gear Slewing Rings: Slewing rings can be equipped with internal or external gears. Internal gear slewing rings have the gear teeth on the inner ring, while external gear slewing rings have the gear teeth on the outer ring. The gear mechanism allows for controlled rotation and can be driven by external components such as motors or hydraulic systems. The choice between internal or external gear configuration depends on the specific application requirements.
  • Non-Gear Slewing Rings: Some slewing rings are designed without integrated gears. These non-gear slewing rings are often used in applications where the rotation is driven by external components or when a separate gear mechanism is already in place.
  • Customized and Specialized Slewing Rings: In addition to the standard types and configurations, slewing rings can be customized and designed to meet specific application requirements. Customized slewing rings may involve variations in dimensions, load capacity, gear specifications, sealing systems, or materials to suit unique applications or challenging operating conditions.

The availability of different types and configurations of slewing rings allows for the selection of the most suitable design based on factors such as load requirements, space limitations, rotational speed, environmental conditions, and application-specific needs. It is essential to consider these factors when choosing a slewing ring to ensure optimal performance and reliability in the intended application.

What are the different types and configurations of slewing rings available in the market?

Slewing rings are available in various types and configurations to cater to the diverse needs of different applications. The following are the different types and configurations of slewing rings commonly available in the market:

  • Single-Row Ball Slewing Rings: This type of slewing ring consists of a single row of balls placed between two rings. It offers compact design, low weight, and high load-carrying capacity. Single-row ball slewing rings are commonly used in applications where axial and radial loads need to be supported.
  • Double-Row Ball Slewing Rings: Double-row ball slewing rings have two rows of balls, providing higher load-carrying capacity compared to single-row designs. They are suitable for applications that require increased load capacity and improved stiffness.
  • Three-Row Roller Slewing Rings: Three-row roller slewing rings feature three rows of rollers arranged in a crisscross pattern. This configuration allows for higher load-carrying capacity and increased rigidity. Three-row roller slewing rings are commonly used in heavy-duty applications where significant radial, axial, and moment loads need to be supported.
  • Ball and Roller Combination Slewing Rings: In some cases, slewing rings are designed with a combination of ball and roller elements. This configuration provides a balance between load capacity and reduced friction. It offers improved rotational characteristics and is often used in applications requiring high load capacity and smooth rotation.
  • Internal Gear and External Gear Slewing Rings: Slewing rings can be equipped with internal or external gears. Internal gear slewing rings have the gear teeth on the inner ring, while external gear slewing rings have the gear teeth on the outer ring. The gear mechanism allows for controlled rotation and can be driven by external components such as motors or hydraulic systems. The choice between internal or external gear configuration depends on the specific application requirements.
  • Non-Gear Slewing Rings: Some slewing rings are designed without integrated gears. These non-gear slewing rings are often used in applications where the rotation is driven by external components or when a separate gear mechanism is already in place.
  • Customized and Specialized Slewing Rings: In addition to the standard types and configurations, slewing rings can be customized and designed to meet specific application requirements. Customized slewing rings may involve variations in dimensions, load capacity, gear specifications, sealing systems, or materials to suit unique applications or challenging operating conditions.

The availability of different types and configurations of slewing rings allows for the selection of the most suitable design based on factors such as load requirements, space limitations, rotational speed, environmental conditions, and application-specific needs. It is essential to consider these factors when choosing a slewing ring to ensure optimal performance and reliability in the intended application.

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.

China supplier Outer Gear Turntable Bearing Slewing Ring for Excavator  China supplier Outer Gear Turntable Bearing Slewing Ring for Excavator
editor by Dream 2024-05-17

China supplier Ru445uu-Cco-X Cross Roller Slewing Ring Tapped Through Holes Turntable Bearing

Product Description

RU445UU-CCO-X Cross Roller Slewing Ring Tapped through holes Turntable Bearing
 

Cylindrical Roller Bearings

 

Spherical Roller Bearings
 
Needle Roller Bearings
Tapered Roller Bearings

 

Crossed Slewing bearing Thrust Roller Bearings

 

Detailed Photos

 

Products Details

 

Cylindrical Roller Bearing
(N,NJ,NU,NF,NUP, NCL, NCF, NN…… Series)

Single-row Cylindrical Roller Bearings
Full Complement Single Row Cylindrical Roller Bearings
Electrically Insulated Single Row Cylindrical Roller Bearings
Single Row Cylindrical Roller Bearings With Ceramic Rollers
Split Single Row Cylindrical Roller Bearings
Cylindrical Roller Bearings For Corrugating Rolls
Cylindrical Roller Bearings For Electrical Locomotive Traction Motors
Double Row Cylindrical Roller Bearings
Full Complement Double Row Cylindrical Roller Bearings
Double Row Cylindrical Roller Bearings With Ceramic Rollers
Split Double Row Cylindrical Roller Bearings
Double Row Cylindrical Roller Bearings For Railway Rolling Stock Axle Journals
Full Complement Triple-row Cylindrical Roller Bearings
Four-row Cylindrical Roller Bearings
Full Complement Four-row Cylindrical Roller Bearings
Six-row Cylindrical Roller Bearings
Eight-row Cylindrical Roller Bearings
Self-aligning Cylindrical Roller Bearings

Spherical Roller Bearing
(21…Series)

Standard Spherical Roller Bearings
Sealed Spherical Roller Bearings
Spherical Roller Bearings For High Temperatures
Spherical Roller Bearings With Oil-filled Polymer Material
Split Spherical Roller Bearings
Energy-Efficient Spherical Roller Bearings
Spherical Roller Bearings For Vibrating Machines
Spherical Roller Bearings For Paper Machines
Spherical Roller Bearings With Oil-filled Polymer Material For Paper Machines
Spherical Roller Bearings For Converters
Split Spherical Roller Bearings For Converters
Spherical Roller Bearings For Continuous Casting Machines
Corrosion-resistant Spherical Roller Bearings
Precision Spherical Roller Bearings
Precision Spherical Roller Bearings With Oil-filled Polymer Material

 

Tapered Roller Bearing
(35710, 30300, 32200, 32300, 32000, 33000, 33100, 33200……Series)

Single Row Tapered Roller Bearings
Sealed Single Row Tapered Roller Bearings
Single Row Tapered Roller Bearings With Oil-filled Polymer Material
Energy Efficient Single Row Tapered Roller Bearings
Double Row Tapered Roller Bearings
Sealed Double Row Tapered Roller Bearings
Self-aligning Double Row Tapered Roller Bearings For Continuous Casting Machines
Four-row Tapered Roller Bearings
Sealed Four-row Tapered Roller Bearings
Precision Tapered Roller Bearings
Single Row Tapered Roller Bearing
Single Row Tapered Roller Bearing With Flanged Cup
Single Row Tapered Roller Bearing, Paired Back-to-back
Single Row Tapered Roller Bearing, Paired Face-to-face
Single Row Tapered Roller Bearing, Paired In Tandem
Double Row Tapered Roller Bearing – TDO Design
Double Row Tapered Roller Bearing – TQI Design
Four-row Tapered Roller Bearing – TQI Design

Needle Roller Bearing
(K, K811, K812, NA, RNA, AXK, NKI, HF, HFL…… Series)

Single Row Needle Roller Bearings
Single Row Needle Roller Bearing With Ribs
Single Row Needle Roller Bearing Without Ribs
Single Row Needle Roller Bearing With CHINAMFG And Seal On One Side
Single Row Needle Roller Bearing With CHINAMFG And Seals On Both Sides
Single Row Needle Roller Bearings With Oil-filled Polymer Material
Single Row Needle Roller Bearing With CHINAMFG And Oil-filled Polymer Material
Single Row Needle Roller Bearing With CHINAMFG And Oil-filled Polymer Material, Seals On Both Sides
Full Complement Single Row Needle Roller Bearings
Full Complement Single Row Needle Roller Bearing
Double Row Needle Roller Bearings
Double Row Needle Roller Bearing With Ribs
Double Row Needle Roller Bearing Without Ribs
Double Row Needle Roller Bearings With Oil-filled Polymer Material
Double Row Needle Roller Bearing With CHINAMFG And Oil-filled Polymer Material
Self-aligning Needle Roller Bearings
Self-aligning Needle Roller Bearing

 

Packaging & Shipping

 

Packaging
 1)Commercial Bearings packaging: 1pc/plastic bag + color box + carton + pallet
 2)Industrial Bearings packaging 
 3)According to the requirement of customers
 Payment
 1) T/T:30% deposit, 70% should be paid before shipment.
 2) L/C at sight. (high bank charge, not suggested, but acceptable )
 3) 100% Western Union in advance. (especially for air shipment or small amounts)
 Delivery
 1) Less than 45 KGS, we will send by express. ( Door to Door, Convenient )
 2) Between 45 – 200 KGS, we will send by air transport. ( Fastest and safest, but expensive )
 3) More than 200 KGS, we will send by sea. ( Cheapest, but long time )

 

 

Company Profile

HangZhou HOJE Bearing Co., LTD Specializing in the manufacture and sales of bearings and bearing accessories, we mainly produce deep groove ball bearings, spherical bearings with seats, tapered roller bearings, and related components. Our factory has the most advanced equipment, first-class mechanical professional and technical personnel, and one-stop automatic production from bearing raw materials to finished products. We are willing to provide excellent services for factories that produce industrial equipment, vehicles, electromechanical tools, home appliances, instrumentation, fitness equipment, leisure sports equipment, users of various types of mechanical equipment and civil machinery, and domestic and foreign traders and distributors.

Company Advantages

1. FREE SAMPLES: contact us by email or trade manager, and we will send the free samples according to your request.
2. World-Class Bearing: We provide our customers with all types of bearings of world-class quality.
3. OEM or Non-Stand Bearings: Any requirement for Non-standard bearings is Easily Fulfilled by us due to our vast knowledge and links in the industry.
4. Genuine products With Excellent Quality: Company has always proved the 100% quality products it provides with genuine intent.
5. After-Sales Service and Technical Assistance: Company provides after-sales service and technical assistance as per the customer’s requirements and needs.
6. Quick Delivery: The company provides just-in-time delivery with its streamlined supply chain.
7. Cost Saving: We provide long-life, shock-resistant, and high-reliability bearings with excellent quality and better performance. Resulting in increased cost savings.
8. Attending customer queries promptly: We believe that if customers are satisfied then it proves our worth well. Customers are always given quick support.

 

 

/* 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

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Medium and Large(120-190mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing
Samples:
US$ 0/Piece
1 Piece(Min.Order)

|

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.

How does the design of a slewing ring contribute to efficient rotation and movement?

The design of a slewing ring plays a crucial role in facilitating efficient rotation and movement in mechanical systems. Several design features contribute to its functionality and performance. Here’s a detailed explanation of how the design of a slewing ring contributes to efficient rotation and movement:

  • Structure and Load Distribution: Slewing rings are designed with a large diameter compared to their thickness. This structural design ensures optimal load distribution across the bearing, allowing it to support axial, radial, and moment loads efficiently. The arrangement of rolling elements within the raceways helps distribute the load evenly, reducing stress concentrations and minimizing friction during rotation.
  • Low Friction and Smooth Rotation: The rolling elements, which can be balls or rollers, are precisely positioned within the raceways of the inner and outer rings. The design ensures that the rolling elements make contact with the raceways at specific angles, reducing friction and enabling smooth rotation. This low-friction design minimizes power loss, enhances energy efficiency, and contributes to the overall efficiency of the system.
  • Gear Mechanism: In some slewing ring designs, a gear mechanism is integrated into the bearing. This allows the slewing ring to act as a rotational drive system, enabling controlled and precise movement. The gear teeth engage with external gears or pinions, providing a means to transmit torque and facilitating rotational motion. The gear mechanism in a slewing ring design contributes to efficient and synchronized rotation in applications where precise positioning or continuous rotation is required.
  • Sealing and Lubrication: Slewing rings are designed with sealing systems to protect the internal components from contaminants and prevent lubricant leakage. The sealing systems help maintain the integrity of the bearing by keeping out dirt, dust, water, and other particles that could cause damage or premature wear. Proper lubrication is also crucial for efficient rotation and movement. The design of slewing rings often includes lubrication channels or grease fittings to ensure adequate lubricant supply to the rolling elements and raceways, reducing friction and promoting smooth operation.
  • Materials and Durability: Slewing rings are typically made of high-quality materials such as alloy steels or specialty steels that offer excellent strength, durability, and corrosion resistance. The choice of materials and the design of the slewing ring take into account the specific application requirements, including factors such as load capacity, operating temperature, and environmental conditions. The design ensures that the slewing ring can withstand the anticipated loads, operating conditions, and service life requirements.

Overall, the design of a slewing ring is carefully engineered to maximize load-bearing capacity, minimize friction, enable smooth rotation, and ensure durability. By incorporating features such as optimized load distribution, low-friction rolling elements, gear mechanisms, sealing systems, and appropriate materials, slewing rings contribute to efficient rotation and movement in mechanical systems, enhancing the overall performance and reliability of the equipment.

What are the different types and configurations of slewing rings available in the market?

Slewing rings are available in various types and configurations to cater to the diverse needs of different applications. The following are the different types and configurations of slewing rings commonly available in the market:

  • Single-Row Ball Slewing Rings: This type of slewing ring consists of a single row of balls placed between two rings. It offers compact design, low weight, and high load-carrying capacity. Single-row ball slewing rings are commonly used in applications where axial and radial loads need to be supported.
  • Double-Row Ball Slewing Rings: Double-row ball slewing rings have two rows of balls, providing higher load-carrying capacity compared to single-row designs. They are suitable for applications that require increased load capacity and improved stiffness.
  • Three-Row Roller Slewing Rings: Three-row roller slewing rings feature three rows of rollers arranged in a crisscross pattern. This configuration allows for higher load-carrying capacity and increased rigidity. Three-row roller slewing rings are commonly used in heavy-duty applications where significant radial, axial, and moment loads need to be supported.
  • Ball and Roller Combination Slewing Rings: In some cases, slewing rings are designed with a combination of ball and roller elements. This configuration provides a balance between load capacity and reduced friction. It offers improved rotational characteristics and is often used in applications requiring high load capacity and smooth rotation.
  • Internal Gear and External Gear Slewing Rings: Slewing rings can be equipped with internal or external gears. Internal gear slewing rings have the gear teeth on the inner ring, while external gear slewing rings have the gear teeth on the outer ring. The gear mechanism allows for controlled rotation and can be driven by external components such as motors or hydraulic systems. The choice between internal or external gear configuration depends on the specific application requirements.
  • Non-Gear Slewing Rings: Some slewing rings are designed without integrated gears. These non-gear slewing rings are often used in applications where the rotation is driven by external components or when a separate gear mechanism is already in place.
  • Customized and Specialized Slewing Rings: In addition to the standard types and configurations, slewing rings can be customized and designed to meet specific application requirements. Customized slewing rings may involve variations in dimensions, load capacity, gear specifications, sealing systems, or materials to suit unique applications or challenging operating conditions.

The availability of different types and configurations of slewing rings allows for the selection of the most suitable design based on factors such as load requirements, space limitations, rotational speed, environmental conditions, and application-specific needs. It is essential to consider these factors when choosing a slewing ring to ensure optimal performance and reliability in the intended application.

China supplier Ru445uu-Cco-X Cross Roller Slewing Ring Tapped Through Holes Turntable Bearing  China supplier Ru445uu-Cco-X Cross Roller Slewing Ring Tapped Through Holes Turntable Bearing
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 Standard CT 231d Excavator Turntable Bearing Slewing Bearing Slewing Ring

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$ 1700/Set
1 Set(Min.Order)

|

Customization:
Available

|

How does the design of a slewing ring contribute to efficient rotation and movement?

The design of a slewing ring plays a crucial role in facilitating efficient rotation and movement in mechanical systems. Several design features contribute to its functionality and performance. Here’s a detailed explanation of how the design of a slewing ring contributes to efficient rotation and movement:

  • Structure and Load Distribution: Slewing rings are designed with a large diameter compared to their thickness. This structural design ensures optimal load distribution across the bearing, allowing it to support axial, radial, and moment loads efficiently. The arrangement of rolling elements within the raceways helps distribute the load evenly, reducing stress concentrations and minimizing friction during rotation.
  • Low Friction and Smooth Rotation: The rolling elements, which can be balls or rollers, are precisely positioned within the raceways of the inner and outer rings. The design ensures that the rolling elements make contact with the raceways at specific angles, reducing friction and enabling smooth rotation. This low-friction design minimizes power loss, enhances energy efficiency, and contributes to the overall efficiency of the system.
  • Gear Mechanism: In some slewing ring designs, a gear mechanism is integrated into the bearing. This allows the slewing ring to act as a rotational drive system, enabling controlled and precise movement. The gear teeth engage with external gears or pinions, providing a means to transmit torque and facilitating rotational motion. The gear mechanism in a slewing ring design contributes to efficient and synchronized rotation in applications where precise positioning or continuous rotation is required.
  • Sealing and Lubrication: Slewing rings are designed with sealing systems to protect the internal components from contaminants and prevent lubricant leakage. The sealing systems help maintain the integrity of the bearing by keeping out dirt, dust, water, and other particles that could cause damage or premature wear. Proper lubrication is also crucial for efficient rotation and movement. The design of slewing rings often includes lubrication channels or grease fittings to ensure adequate lubricant supply to the rolling elements and raceways, reducing friction and promoting smooth operation.
  • Materials and Durability: Slewing rings are typically made of high-quality materials such as alloy steels or specialty steels that offer excellent strength, durability, and corrosion resistance. The choice of materials and the design of the slewing ring take into account the specific application requirements, including factors such as load capacity, operating temperature, and environmental conditions. The design ensures that the slewing ring can withstand the anticipated loads, operating conditions, and service life requirements.

Overall, the design of a slewing ring is carefully engineered to maximize load-bearing capacity, minimize friction, enable smooth rotation, and ensure durability. By incorporating features such as optimized load distribution, low-friction rolling elements, gear mechanisms, sealing systems, and appropriate materials, slewing rings contribute to efficient rotation and movement in mechanical systems, enhancing the overall performance and reliability of the equipment.

How do electronic or computer-controlled components integrate with slewing rings in modern applications?

In modern applications, electronic or computer-controlled components are often integrated with slewing rings to enhance functionality, precision, and automation. This integration allows for advanced control, monitoring, and optimization of rotating systems. Here’s a detailed explanation of how electronic or computer-controlled components integrate with slewing rings in modern applications:

  • Sensor Integration: Electronic sensors can be integrated with slewing rings to provide real-time feedback and data on various parameters. For example, position sensors can be used to accurately track the position and angle of the slewing ring, enabling precise control and positioning of the rotating components. Load sensors can measure the load applied to the slewing ring, allowing for dynamic load monitoring and optimization.
  • Control Systems: Computer-controlled components, such as programmable logic controllers (PLCs) or microcontrollers, can be used to manage the operation of slewing rings. These control systems can receive input from sensors and execute algorithms to control the speed, direction, and positioning of the slewing ring. By integrating electronic control systems, precise and automated control of the slewing ring can be achieved, improving efficiency and reducing human error.
  • Automation and Synchronization: In modern applications, slewing rings are often integrated into automated systems where they work in synchronization with other components. Electronic or computer-controlled components can facilitate this synchronization by coordinating the movements of multiple slewing rings or integrating them with other automated processes. This integration enables seamless and optimized operation of the rotating system as a whole.
  • Data Monitoring and Analysis: Electronic components can be used to collect and analyze data from slewing rings. This data can include parameters such as position, speed, temperature, and load. By monitoring and analyzing this data, it is possible to identify patterns, detect anomalies, and optimize the performance of the slewing rings. This information can be used for predictive maintenance, energy optimization, and performance improvement.
  • Communication and Networking: Electronic components enable communication and networking capabilities for slewing rings. They can be connected to a network or interface with other control systems, allowing for remote monitoring, control, and integration into larger systems. This enables centralized monitoring and control of multiple rotating systems, facilitating efficient operation and maintenance.
  • Feedback and Safety Systems: Electronic components can provide feedback and safety features in slewing ring applications. For example, limit switches or proximity sensors can detect the end positions of the slewing ring’s rotation and trigger safety mechanisms or control actions accordingly. This ensures safe operation, prevents over-rotation, and protects the equipment and personnel.

By integrating electronic or computer-controlled components with slewing rings, modern applications can achieve enhanced control, precision, automation, and data-driven optimization. This integration allows for efficient operation, improved safety, accurate positioning, synchronization with other systems, and the ability to adapt to changing operational requirements. It paves the way for advanced technologies such as robotics, Internet of Things (IoT), and Industry 4.0, where slewing rings play a vital role in the seamless integration of mechanical and electronic systems.

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 Standard CT 231d Excavator Turntable Bearing Slewing Bearing Slewing Ring  China Standard CT 231d Excavator Turntable Bearing Slewing Bearing Slewing Ring
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 wholesaler CT 231d Excavator Turntable Bearing Slewing Bearing Slewing Ring

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$ 1700/Set
1 Set(Min.Order)

|

Customization:
Available

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How do slewing rings contribute to the adaptability and versatility of rotating systems in various settings?

Slewing rings play a crucial role in enhancing the adaptability and versatility of rotating systems across various settings. Here’s a detailed explanation of how slewing rings contribute to the adaptability and versatility of rotating systems:

  • 360-Degree Rotation: Slewing rings enable 360-degree continuous rotation, allowing rotating systems to operate in any direction. This flexibility is especially valuable in applications such as cranes, excavators, and wind turbines, where unrestricted rotation is necessary to perform tasks efficiently and access multiple work zones without repositioning the entire system.
  • Load-Bearing Capacity: Slewing rings are designed to handle significant radial, axial, and moment loads. Their robust construction and large diameter enable them to support heavy equipment and loads, making them suitable for a wide range of applications, including construction machinery, material handling systems, and offshore platforms. The high load-bearing capacity of slewing rings contributes to the adaptability of rotating systems in demanding settings.
  • Compact Design: Slewing rings have a compact and space-saving design compared to alternative mechanisms for rotational movement. This compactness allows for the integration of slewing rings into systems where space is limited, such as compact construction machinery, industrial robots, and medical equipment. The compact design of slewing rings enhances the adaptability of rotating systems in confined or restricted environments.
  • Versatile Mounting Options: Slewing rings offer versatile mounting options, allowing them to be easily integrated into different types of rotating systems. They can be mounted using various methods, including bolted connections, gear or pinion arrangements, or hydraulic or electric drives. This versatility in mounting options enables slewing rings to adapt to the specific requirements and constraints of different applications and settings.
  • Support for Multiple Components: Slewing rings provide support for various components that are essential for rotating systems. For example, they can support booms, arms, or jibs in construction machinery, or act as a base for rotating platforms or turntables in manufacturing or entertainment industries. By providing a stable and reliable foundation, slewing rings enable the integration of multiple components, enhancing the versatility and adaptability of the overall system.
  • Customization and Specialized Designs: Slewing rings can be customized and designed to meet specific application requirements. Manufacturers can tailor slewing rings to accommodate specific load capacities, dimensions, mounting arrangements, sealing systems, or environmental conditions. This customization allows for the adaptation of slewing rings to diverse settings, ensuring optimal performance and functionality.
  • Integration with Control Systems: Slewing rings can be integrated with electronic or computer-controlled components, such as sensors, actuators, and control systems. This integration enables precise control, automation, and synchronization of rotating systems. By incorporating advanced control features, slewing rings can adapt to dynamic operating conditions, optimize performance, and support advanced functionalities, such as coordinated motion, precision positioning, or remote monitoring.

In summary, slewing rings contribute to the adaptability and versatility of rotating systems by enabling 360-degree rotation, providing high load-bearing capacity, offering a compact design, supporting versatile mounting options, accommodating multiple components, allowing customization, and facilitating integration with control systems. These characteristics make slewing rings suitable for a wide range of applications and settings, enhancing the versatility and adaptability of rotating systems in industries such as construction, manufacturing, transportation, renewable energy, and many others.

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 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 wholesaler CT 231d Excavator Turntable Bearing Slewing Bearing Slewing Ring  China wholesaler CT 231d Excavator Turntable Bearing Slewing Bearing Slewing Ring
editor by Dream 2024-05-10

China Best Sales VSI 20 0544 N Slewing Bearing/Small Turntable Bearing Factory bearing bronze

Product Description

VSI 20 0544 N Slewing Bearing/Small Turntable Bearing Factory

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 CZPT 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
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
Material: 50mn/42CrMo
Type: External Gear
Samples:
US$ 280/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

bearing

Materials Used in Bearings

If you’re not familiar with the types of bearings, you may be interested in knowing more about the materials used to manufacture them. Here’s a look at what each type of bearing is made of, how it’s used, and how much they cost. To find the right bearing for your application, it’s important to choose a quality lubricant. The materials used in bearings are determined by their type and applications. Choosing the right lubricant will extend its life, and protect your machine’s parts from damage and premature wear.

Materials used in bearings

Bearings are made from a variety of materials. Stainless steel is a common material used for the components of bearings. It has a higher content of chromium and nickel. When exposed to oxygen, chromium reacts with it to form chromium oxide, which provides a passive film. For higher temperatures, teflon and Viton are also used. These materials offer excellent corrosion resistance and are often preferred by manufacturers for their unique properties.
Stainless steel is another material used in bearings. AISI 440C is a high-carbon stainless steel commonly used in rolling-contact bearings. It is widely used in corrosive environments, especially in applications where corrosion resistance is more important than load capacity. It can also be heat-treated and hardened to 60 HRC, but has lower fatigue life than SAE 52100. Stainless steel bearings may carry a 20-40% price premium, but their superior performance is worth the extra money.
Graphite and molybdenum disulfide are two of the most common materials used in bearings. While graphite is a popular material in bearings, it has very poor corrosion resistance and is unsuitable for applications where oil or grease is required. Graphite-based composite materials are another option. They combine the benefits of both graphite and ceramic materials. A variety of proprietary materials have been developed for high-temperature use, such as graphite and MoS2.
Wood bearings have been around for centuries. The oldest ones used wood and Lignum Vitae. These materials were lightweight, but they were incredibly strong and durable. Wood bearings were also lubricated with animal fats. During the 1700s, iron bearings were a popular choice. In 1839, Isaac Babbitt invented an alloy containing hard metal crystals suspended in a softer metal. It is considered a metal matrix composite.

Applications of bearings

Bearings are used in many different industries and systems to help facilitate rotation. The metal surfaces in the bearings support the weight of the load, which drives the rotation of the unit. Not all loads apply the same amount of force to bearings, however. Thrust and radial loads act in distinctly different ways. To better understand the different uses of bearings, let’s examine the various types of bearings. These versatile devices are essential for many industries, from automobiles to ships and from construction to industrial processes.
Cylindrical roller bearings are designed to support heavy loads. Their cylindrical rolling element distributes the load over a larger area. They are not, however, suited to handling thrust loads. Needle bearings, on the other hand, use small diameter cylinders and can fit into tighter spaces. The advantages of these types of bearings are numerous, and many leading producers are now leveraging the Industrial Internet of Things (IIoT) to develop connected smart bearings.
As a power generation industry, bearings play an essential role. From turbines to compressors, from generators to pumps, bearings are essential components of equipment. In addition to bearings, these components help move the equipment, so they can work properly. Typically, these components use ball bearings, although some roller bearings are used as well. In addition to being efficient and durable, these types of bearings also tend to be built to meet stringent internal clearance requirements and cage design requirements.
In addition to bearings for linear motion, bearings can also bear the weight of a rotary part. Depending on the application, they can be designed to minimize friction between moving parts. By constraining relative motion, bearings are used to reduce friction within a given application. The best-designed bearings minimize friction in a given application. If you’re in the market for a new bearing, NRB Industrial Bearings Limited is an excellent source to begin your search.

Types of bearings

bearing
The type of bearings you choose will have a significant impact on the performance of your machinery. Using the right bearings can increase efficiency, accuracy, and service intervals, and even reduce the cost of purchasing and operating machinery. There are several different types of bearings to choose from, including ball bearings and flexure bearings. Some types use a fluid to lubricate their surfaces, while others do not.
Plain bearings are the most common type of bearing, and are used for a variety of applications. Their cylindrical design allows for a relatively smooth movement. Often made of copper or other copper alloy, they have low coefficients of friction and are commonly used in the construction industry. Some types of plain bearings are also available with a gudgeon pin, which connects a piston to a connecting rod in a diesel engine.
Magnetic bearings are the newest type of bearing. They use permanent magnets to create a magnetic field around the shaft without requiring any power. These are difficult to design, and are still in the early stages of development. Electromagnets, on the other hand, require no power but can perform very high-precision positioning. They can be extremely durable and have a long service life. They are also lightweight and easy to repair.
Another type of bearing is needle roller. These are made of thin, long, and slender cylinders that are used in a variety of applications. Their slender size is ideal for a space-constrained application, and their small profile allows them to fit in tight places. These types of bearings are often used in automotive applications, bar stools, and camera panning devices. They have several advantages over ball bearings, including the ability to handle heavy axial loads.

Cost of bearings

A wide range of factors affect the cost of aerospace bearings, including the bearing material and its volatility. Manufacturers typically use high-grade steel for aircraft bearings, which are highly affected by fluctuations in the steel price. Government policies also play a part in the variation in trade price. The implementation of COVID-19 has changed the market dynamics, creating an uncertain outlook for supply and demand of aerospace bearings. New trade norms and transportation restrictions are expected to hamper the growth of this industry.
Demand for aerospace bearings is largely driven by aircraft manufacturers. In North America, aircraft manufacturers must meet extremely high standards of weight, performance, and quality. They also must be lightweight and cost-effective. This has resulted in a rising cost of aerospace bearings. The market for aerospace bearings is expected to grow at the highest CAGR over the next few years, driven by increasing investments in defense and aerospace infrastructure across Asia-Pacific.
Hub assemblies are also expensive. A wheel hub will cost between $400 and $500 for one set of bearings. In addition to this, the speed sensor will be included. The average cost of wheel bearings is between $400 and $500 for one side, including labor. But this price range is much lower if the bearing is a replacement of an entire wheel assembly. It is still worth noting that wheel hub bearings can be purchased separately for a lower price.
Replacement of one or two wheel bearings will depend on the model and year of the vehicle. For a small car, one rear wheel bearing can cost between $190 and $225, whereas two front wheel hubs can cost upwards of $1,000. Labor and parts prices will vary by location, and labor costs may also be covered under some warranty plans. If you decide to have it done yourself, be sure to ask multiple shops for estimates.

Inspection of bearings

bearing
To maintain bearing performance and prevent accidents, periodic inspections are essential. In addition to ensuring reliability, these inspections improve productivity and efficiency. Regular maintenance includes disassembly inspection, replenishment of lubricant and monitoring operation status. Here are some common ways to perform the necessary inspections. Keep reading to learn how to maintain bearings. After disassembly, you must clean the components thoroughly. Ensure that the bearings are free of burrs, debris, and corrosion.
Ultrasound technology is an excellent tool for monitoring slow-speed bearings. Most ultrasound instruments offer wide-ranging sensitivity and frequency tuning. Ultrasound can also be used to monitor bearing sound. Ultra-slow bearings are usually large and greased with high-viscosity lubricant. Crackling sounds indicate deformity. You can also listen for abnormal noise by plugging a vibration analyzer into the machine. Once the machine shows abnormal noise, schedule additional inspections.
Ultrasonic inspection involves using an ultrasound transducer to measure the amplitude of sound from a bearing. It is effective in early warnings of bearing failure and prevents over-lubrication. Ultrasound inspection of bearings is a cost-effective solution for early diagnosis of bearing problems. In addition to being a reliable tool, ultrasonic testing is digital and easy to implement. The following are some of the advantages of ultrasonic bearing inspection.
Dynamic quality evaluation involves the use of a special fixture for measuring bearing deformations under low shaft speed and light radial load. The size of the fixture influences the value of the deformations. A fixture should be sized between the diameter of the sensor and the roller to ensure maximum precision. The outer deformation signal is more sensitive with a larger sensor diameter. A vibration-acceleration sensor is used for the contrast test.

China Best Sales VSI 20 0544 N Slewing Bearing/Small Turntable Bearing Factory   bearing bronzeChina Best Sales VSI 20 0544 N Slewing Bearing/Small Turntable Bearing Factory   bearing bronze
editor by Dream 2024-05-08

China Professional Slewing Bearing 81em-00021gg Ring Turntable Bearing R180W-9s Single Row Four Contact Ball Structure

Product Description

1. Product Description
 

Material 42CrMo or 50Mn
Delivery Time 15 Days
Transport By sea, by air, by railway, by express
Warranty Period 18 Months
Package Wooden Box
Payment T/T , Western Union, Paypal

2. Product show

3. Company profile

HangZhou King Slewing Bearing Technology Co., Ltd. is a specialized manufacturer and exporter for excavator and crane slewing bearings. The company occupies the workshop area of 6, R320LC-7    81n9-57122 BG R210W-9S 81Q5-57120 R320LC-7    81N9-00571 R210W-9S 81Q5-57121 R360/380 81NA-57120 R220LC-9S 81Q6-0571 R360LC-7A 81NA-57121BG R220LC-9S 81Q6-57120 R450/500 81NB-57121 R220LC-9S 81Q6-57121 R450-7A    81NB-57122BG R220LC-9S 81Q6-00571 R520LC-9S   81QB-57120 R225-7   81qb-57121 ZX850-3  HH2036267 R250LC-7    81EN0051    

 6. Our machine tools

7. Packaging by wooden box

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

8. Contact information

Company: HangZhou King Slewing Bearing Technology Co.,Ltd
Address: CHINAMFG Xinzhan CHINAMFG Science and Technology Park, Xinzhan District, HangZhou, ZheJiang Province
Contact person: Amy Sun
  /* 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$ 950/Set
1 Set(Min.Order)

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Customization:
Available

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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 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.

China Professional Slewing Bearing 81em-00021gg Ring Turntable Bearing R180W-9s Single Row Four Contact Ball Structure  China Professional Slewing Bearing 81em-00021gg Ring Turntable Bearing R180W-9s Single Row Four Contact Ball Structure
editor by Dream 2024-05-08

China supplier Outer Gear Turntable Bearing Slewing Ring for Excavator

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,Hitachi, Kobelco, Sumitomo, Doosan, Hyundai, Samsung, Daewoo, Kato, 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

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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.

How does the choice of slewing rings affect the overall performance and reliability of rotating systems?

The choice of slewing rings has a significant impact on the overall performance and reliability of rotating systems. The selection of the appropriate slewing ring involves considering various factors such as load capacity, operating conditions, precision requirements, and application-specific needs. Here’s a detailed explanation of how the choice of slewing rings affects the overall performance and reliability of rotating systems:

  • Load Capacity: The load capacity of the slewing ring is a critical factor in determining the performance and reliability of the rotating system. Choosing a slewing ring with an adequate load capacity ensures that the system can handle the expected loads without excessive stress or deformation. If the selected slewing ring has insufficient load capacity for the application, it can lead to premature failure, increased wear, and compromised reliability.
  • Operating Conditions: The operating conditions, including factors such as temperature, humidity, dust, and exposure to corrosive substances, influence the choice of slewing rings. It is essential to select a slewing ring that is designed to withstand the specific environmental conditions of the application. Failure to consider the operating conditions can result in accelerated wear, corrosion, reduced performance, and decreased reliability of the rotating system.
  • Precision Requirements: Some applications require high precision and accuracy in the movement and positioning of the rotating system. The choice of slewing ring with appropriate precision is crucial to meet these requirements. Slewing rings designed for precision applications incorporate features such as high-precision raceways, gear teeth, or preloading mechanisms. Selecting a slewing ring with inadequate precision can lead to inaccuracies, positioning errors, and compromised performance of the rotating system.
  • Material Selection: The choice of materials for the slewing ring affects its durability, resistance to wear, and overall reliability. Different materials, such as carbon steel, stainless steel, or specialized alloys, have varying properties and performance characteristics. The selection of the appropriate material depends on factors such as load requirements, operating conditions, and the presence of corrosive or abrasive elements. Choosing the wrong material can result in premature wear, reduced lifespan, and compromised reliability of the rotating system.
  • Sealing and Lubrication: Slewing rings require proper sealing and lubrication to ensure smooth operation and prevent contamination or inadequate lubrication. The choice of slewing rings with effective sealing mechanisms and suitable lubrication requirements is crucial for maintaining performance and reliability. Inadequate sealing or improper lubrication can lead to increased friction, accelerated wear, and decreased reliability of the rotating system.
  • Manufacturer and Quality: The choice of a reputable manufacturer and high-quality slewing rings is essential for ensuring reliability and performance. Reliable manufacturers adhere to stringent quality control processes, use advanced manufacturing techniques, and provide comprehensive technical support. Choosing slewing rings from trusted manufacturers reduces the risk of premature failures, ensures consistent performance, and enhances the overall reliability of the rotating system.

In summary, the choice of slewing rings has a significant impact on the overall performance and reliability of rotating systems. Considering factors such as load capacity, operating conditions, precision requirements, material selection, sealing and lubrication, and the reputation of the manufacturer helps in selecting the appropriate slewing rings. By making the right choice, the rotating system can operate efficiently, withstand expected loads, maintain precision, and provide reliable performance throughout its lifespan.

China supplier Outer Gear Turntable Bearing Slewing Ring for Excavator  China supplier Outer Gear Turntable Bearing Slewing Ring for Excavator
editor by Dream 2024-05-07

China wholesaler Roller Turntable Bearing (9E-1Z25-0575-1044) External Teeth Slewing Ring

Product Description

Please see details for  slewing ring bearing, 
Crossed roller slewing ring bearing with external gear
9E-1Z14-571- 0571
9E-1Z20-571-5710
9E-1Z30-0505-571
9E-1Z30-0508-5716
9E-1Z25-571-1322
9E-1Z25-571-1044
9E-1Z25-0675-0145
9E-1Z25-0675-1045

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

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.

Crossed roller slewing ring bearing with external gear
9E-1Z12-5715-0694 9E-1Z14-5714-0110 9E-1Z14-5714-0862 9E-1Z20-0309-0765
9E-1Z16-571-0111-3 9E-1Z16-571-571 9E-1Z25-0384-18-1 9E-1Z30-0461-0119
9E-1Z30-0461-0126 9E-1Z14-571- 0571 9E-1Z20-571-5710 9E-1Z30-0505-571
9E-1Z30-0508-5716 9E-1Z25-571-1322 9E-1Z25-571-1044 9E-1Z25-0675-0145
9E-1Z25-0675-1045 9E-1Z20-571-1198 9E-1Z20-571-5711 9E-1Z30-0823-15
9E-1Z30-0823-15-2 9E-1Z30-0823-37 9E-1Z30-0823-80 9E-1Z30-0823-1250
9E-1Z30-0980-16 9E-1Z25-0984-571 9E-1Z25-0980-5714 9E-1Z30-1110-571
9E-1Z40-1250-0263 9E-1Z45-1390-0841 9E-1Z25-1468-1251 9E-1Z30-1473-78
9E-1Z40-1584-26 9E-1Z40-1584-26-3 9E-1Z50-1722-1238 9E-1Z50-1790-5712
9E-1Z45-1791-0706 9E-1Z30-1830-5717 9E-1Z36-1870-1291  

Crossed roller slewing ring bearing with internal gear
9I-1Z12-5718-571 9I-1Z16-571-0196 9I-1Z16-571-0196-1 9I-1Z16-571-571
9I-1Z18-0489-1337 9I-1Z18- 0571 -1402 9I-1Z20-0742-1335 9I-1Z25- 0571 -571
9I-1Z30-0923-571 9I-1Z30-1035-0174 9I-1Z30-1090-1151 9I-1Z30-1090-571
9I-1Z25-1075-0654 9I-1Z40-1150-1123 9I-1Z40-1175-30 9I-1Z30-1305-0406
9I-1Z40-1385- 0571 9I-1Z40-1385-0301 9I-1Z40-1385-0639 9I-1Z30-1380-1053
9I-1Z40-1632-0194 9I-1Z60-2435-1221 9I-1Z60-2435-1218  

Crossed roller slewing ring bearing without gear
9O-1Z08-0168-0864 9O-1Z12-0179- 0571 9O-1Z08-0168-1178  
9O-1Z20-5710-0184 9O-1Z14-0193-0152 9O-1Z14-0193-0152-1 9O-1Z14-0193-0152-2
9O-1Z12-5712-0440-4 9O-1Z14-5712-1026-1 9O-1Z12-5712-0619 9O-1Z14-5714-0168-1
9O-1Z10-5710-0176-2 9O-1Z10-5710-0176-3 9O-1Z12-5715-1180 9O-1Z20-5715-571
9O-1Z20-5715-0487 9O-1Z25-571-0487-1 9O-1Z14-0300-571 9O-1Z10-5715- 0571
9O-1Z14-0305-5718 9O-1Z25-0384-0544 9O-1Z30-0400-0488 9O-1Z30-0400-0488-1
9O-1Z30-0461-0260 9O-1Z30-0461-0125 9O-1Z30-0461-5718 9O-1Z30- 0571 -571-1
9O-1Z40-571-0480 9O-1Z30- 0571 -38 9O-1Z30-0820-1351 9O-1Z30-0823-15-1
9O-1Z25- 0571 -571 9O-1Z30-0980-16-8 9O-1Z25-0980- 0571 9O-1Z50-2071-571
9O-1Z20-2045-571 9O-1Z40-2248-55 9O-1Z40-2248-55-1  

Double row roller slewing ring bearing with internal gear
9I-2R40-1422-0780 9I-2R32-1405- 0571 9I-2R40-1697-571  
Three row roller slewing ring bearing without gear
9O-3R16- 0571 -1058 9O-3R16-0850-1017 9O-3R36-1543-1096 9O-3R40-2930-1237
Three row roller slewing ring bearing with external gear
9E-3R25-1291-1177 9E-3R20-1375-1046 9E-3R45-2193-1159  
Three row roller slewing ring bearing with internal gear
9I-3R40-1574-571 9I-3R32-2048-1154 9I-3R28-2140-1314 9I-3R32-2140-1305
9I-3R28-2140-1018 9I-3R28-2140-1018-1 9I-3R28-2910-1098  

/* 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: Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Straight Raceway
Material: 50mn or 42CrMo
Samples:
US$ 70/Piece
1 Piece(Min.Order)

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Customization:
Available

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Are there innovations or advancements in slewing ring technology that have emerged recently?

Yes, there have been several innovations and advancements in slewing ring technology that have emerged recently. These advancements aim to improve the performance, efficiency, durability, and versatility of slewing rings in various applications. Here’s a detailed explanation of some recent innovations in slewing ring technology:

  • Lightweight Materials: Manufacturers are increasingly exploring the use of lightweight materials such as aluminum alloys or advanced composites in slewing ring construction. These materials offer high strength-to-weight ratios, reducing the overall weight of the slewing ring without compromising its load-bearing capacity. The adoption of lightweight materials contributes to energy savings, improved maneuverability, and reduced structural stress.
  • Enhanced Sealing and Protection: Slewing rings are being equipped with advanced sealing systems and protective coatings to enhance their resistance to environmental factors such as dust, moisture, and chemicals. These innovations help prevent contamination, reduce friction, and extend the lifespan of the slewing rings, especially in harsh operating conditions.
  • Integrated Bearings and Gear Technology: Some slewing rings now incorporate integrated bearing and gear technologies. This integration eliminates the need for separate bearings and gears, simplifying the design and reducing assembly time. It also improves load distribution and torque transmission, resulting in smoother operation, increased efficiency, and reduced maintenance requirements.
  • Improved Lubrication Systems: Lubrication systems for slewing rings have seen advancements to enhance lubricant distribution and retention. Centralized lubrication systems, automatic lubrication systems, or sealed-for-life designs are being implemented to ensure optimal lubrication and minimize maintenance intervals. These advancements contribute to lower friction, reduced wear, and improved efficiency.
  • Condition Monitoring and Predictive Maintenance: Slewing rings are being equipped with condition monitoring systems that utilize sensors and data analysis techniques. These systems monitor parameters such as temperature, vibration, and load to detect anomalies and predict potential failures. By enabling predictive maintenance, these advancements help optimize maintenance schedules, minimize downtime, and extend the operational life of slewing rings.
  • Smart and Connected Features: The integration of smart and connected features in slewing rings is becoming more prevalent. Slewing rings equipped with IoT capabilities can communicate data wirelessly, enabling remote monitoring, diagnostics, and control. This facilitates real-time performance analysis, allows for centralized management of multiple slewing rings, and supports the implementation of advanced automation and optimization strategies.
  • Improved Manufacturing Techniques: Advances in manufacturing technologies, such as precision machining, automated assembly, and advanced quality control methods, have contributed to the production of high-quality slewing rings. These techniques ensure tighter tolerances, improved surface finishes, and enhanced reliability. Additionally, computer-aided design (CAD) and simulation tools allow for better optimization of slewing ring designs, resulting in improved performance and efficiency.

These recent innovations and advancements in slewing ring technology have opened up new possibilities for various industries where slewing rings are utilized, including construction, mining, renewable energy, material handling, and aerospace. They offer improved performance, increased durability, enhanced functionality, and greater efficiency, enabling the optimization of rotating systems and supporting the development of advanced applications.

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.

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 wholesaler Roller Turntable Bearing (9E-1Z25-0575-1044) External Teeth Slewing Ring  China wholesaler Roller Turntable Bearing (9E-1Z25-0575-1044) External Teeth Slewing Ring
editor by Dream 2024-05-06