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

Product Description

Products: Free Forging and Open Die Forging factory. 

 

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

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

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


steel hot forging raw forging gear shaft 
 

Description

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

Type

Free forging. 

Application

Wind power Transformisson system , machinery and other industry

Processing

Forging+machining+heating Treatment

Material

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

Weight Ranges

0.1kg-50tons

Roughness

Ra0.4 – 0.8

Our Certificates:  

Our Lab equipment:  

Our main Products:  

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

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

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

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

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

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

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

Welcom Trading compamy to co-operate.  

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

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Order Sample

Customization:
Available

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Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



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

In what industries or scenarios are slewing rings commonly employed?

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

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

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

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

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

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

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

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

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

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

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

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

China Hot selling Od 580mm Slewing Bearing Without Gear 580-20-020

Product Description

1 Type single row 4 point contact ball slewing bearing, ring bearing, slewing gear
2 Model 580-20-571
3 Dimension Range 580*360*56
4 Manufacturing Experience 20 years
5 Certificate ISO9001, BV, ABS, SG,LR,DNV
6 Material 42CrMo, 50Mn,C45
7 Precision P0. P6. P5.
8 Cage/retainer Nylon or Steel or Brass
9 Gear type Internal/external/no gear teeth
10 Hardness forging hardness HB229-352, raceway hardness HRB58-62

 

Brief introduction our CHINAMFG bearings

1.introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building. 
2. Featured products: slewing bearing and slewing drive
3. Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4. Workers: 40
5. Certificate: ISO9001:2008, 3.1 certificate, CCS certificate, Science and Technology Progress Award
6. Annual Exportation: 8million USD
7. Exported countries: (39)
Asia: India, Pakistan, Iran, Signore, Georgia, Malaysia, Vietnam, Thailand, Philippines, Israel, Korea, UAE, Sri Lanka, Saudi Arabia,
Europe: Turkey, Russia, Spain, Czech Republic, Italy, Poland, Slovakia, Bosnia and Herzegovina, Austria, France, Germany, Switzerland, Finland, Ukraine, UK
America: USA, Canada, Mexico, Brazil, Puerto Rico, Peru, Chile
Africa: South Africa, Egypt
Oceania: Australia

 Introduction of CHINAMFG single row ball slewing bearings

CHINAMFG is a professional manufacturer in slewing ring bearings since 1993. We can also design and make other standard and non-standard ball bearings, roller bearings and precision bearings as per customer’s different technical requirements.
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.

Structure:
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

LYHY Production Process

Quality Control Process of CHINAMFG slewing bearings

LYHY Slewing Bearing 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;

Transportation:
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.
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.

INSTALLATION OF CHINAMFG SLEWING BEARINGS

Preparation:
Make sure that the model is correct and slewing bearing isn’t damaged during transportation.
2.  Check the appearance and rotational state of the bearing, such as rotational precision clearance, rotating flexibility, seals position, lubrication grease etc.
3.  The installation datum plane and bracket installing plane should be clean, grease, burr, paint and other foreign body should be wiped off.

Installation:

1. The screws in the installing plane should be fit with the mounting holes in the slewing bearing
2.  The slewing bearing has a soft zone marked with an “s” on the upper surface, when installing the bearing, it is important to ensure that this area is placed in a non-load or infrequent load zone.
3.  When the bearing is placed on the supporting frame work it is important to check the interface between these 2 surfaces. This check should be carried out with the insertion of feel gauges between the 2 surfaces. If a gap should exist then it is recommended to plane/resurface the effective area so as to remove the gap.
4.  Install slewing bearing with high strength screws, and choose appropriate strength bolts. All bolts are required to be tightened evenly. The sequence of this tightening process is shown in Pic. Welding of bearing is not allowed, in the event of welding any adjacent parts, heat transfer shall be avoided so as to cause the bearing to become deformed or change the hardness.
5.  After installation, the bearing should be rotated to check for smooth operation and any emission of unusual noise. If either of the aforementioned are noted, then the bearing should be adjusted to eliminate them. The teeth of the largest run-out are coated with green paint.

FAQ:

Q: Are LYHY BEARINGS trading company or manufacturer?
A: LYHY BEARINGS is a professional manufacturer for slewing bearings, thin section bearings, ball bearings and rolling bearings

Q: How do LYHY BEARINGS control quality of their bearing?
A: LYHY BEARINGS has established strict quality control systems, all the products and services has passed ISO9001-2008 Quality Certificate and third party such as CCS, LR,ABS,BV

Q: What is the MOQ?
A: MOQ is 1pc, pls message us for detailed information.

Q: How about the package for CHINAMFG bearings?
A: Standard Industrial packing in general condition (Plastic tube+ professional plastic belts+ plywood case). Accept design package when OEM.

Q: How long is the production time?
A: It takes about 7-40 days, depends on the model and quantity.

Q: How about the shipping?
A: We can arrange the shipment or you may have your own forwarder.

Q: Is sample available?
A: Yes, sample order is acceptable.

Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable for LYHY BEARINGS. We can design as per your requirements and use your own LOGO and package design.
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Standard or Nonstandard: Standard
Feature: High Speed
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Four Point Contact Ball
Material: 50mn, 42CrMo
Samples:
US$ 340/Piece
1 Piece(Min.Order)

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Customization:
Available

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

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

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

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

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.

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

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

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

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

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

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

China Hot selling Od 580mm Slewing Bearing Without Gear 580-20-020  China Hot selling Od 580mm Slewing Bearing Without Gear 580-20-020
editor by Dream 2024-05-09

China Hot selling External Gear Teeth Turntable Bearings (KDM. A. 0844.00.10 KDM. A. 0944.00.10) Ball Swing Bearing Slewing Ring

Product Description

Please see details for  slewing ring bearing swing bearing with external gear
KDM.A.571.00.10
KDM.A.0544.00.10
KDM.A.0644.00.10
KDM.A. 0571 .00.10
KDM.A.0844.00.10
KDM.A.0944.00.10
KDM.A.1094.00.10

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.

KDL flanged turntable bearing light series
KDL.U-no gear KDL.I-internal gear KDL.A-external gear
KDL.U.571.00.10 KDL.I.571.00.10 KDL.A.571.00.10
KDL.U.0544.00.10 KDL.I.0544.00.10 KDL.A.0544.00.10
KDL.U.0644.00.10 KDL.I.0644.00.10 KDL.A.0644.00.10
KDL.U. 0571 .00.10 KDL.I. 0571 .00.10 KDL.A. 0571 .00.10
KDL.U.0844.00.10 KDL.I.0844.00.10 KDL.A.0844.00.10
KDL.U.0944.00.10 KDL.I.0944.00.10 KDL.A.0944.00.10
KDL.U.1094.00.10 KDL.I.1094.00.10 KDL.A.1094.00.10

KDLH flanged turntable bearings light series high
KDLH.U-no gear KDLH.I-internal gear KDLH.A-external gear
KDLH.U. 0571 .00.10 KDLH.I. 0571 .00.10 KDLH.A. 0571 .00.10
KDLH.U.1055.00.10 KDLH.I.1055.00.10 KDLH.A.1055.00.10
KDLH.U.1155.00.10 KDLH.I.1155.00.10 KDLH.A.1155.00.10
KDLH.U.1255.00.10 KDLH.I.1255.00.10 KDLH.A.1255.00.10
KDLH.U.1355.00.10 KDLH.I.1355.00.10 KDLH.A.1355.00.10
KDLH.U.1455.00.10 KDLH.I.1455.00.10 KDLH.A.1455.00.10

KDM ball turntable bearings medium series
KDM.U-no gear KDM.I-internal gear KDM.A-external gear
KDM.U.571.00.10 KDM.I.571.00.10 KDM.A.571.00.10
KDM.U.0544.00.10 KDM.I.0544.00.10 KDM.A.0544.00.10
KDM.U.0644.00.10 KDM.I.0644.00.10 KDM.A.0644.00.10
KDM.U. 0571 .00.10 KDM.I. 0571 .00.10 KDM.A. 0571 .00.10
KDM.U.0844.00.10 KDM.I.0844.00.10 KDM.A.0844.00.10
KDM.U.0944.00.10 KDM.I.0944.00.10 KDM.A.0944.00.10
KDM.U.1094.00.10 KDM.I.1094.00.10 KDM.A.1094.00.10

KDMH ball turntable bearings medium series high
KDMH.U-no gear KDMH.I-internal gear KDMH.A-external gear
KDMH.U.571.00.10 KDMH.I.571.00.10 KDMH.A.571.00.10
KDMH.U.571.00.10 KDMH.I.571.00.10 KDMH.A.571.00.10
KDMH.U. 0571 .00.10 KDMH.I. 0571 .00.10 KDMH.A. 0571 .00.10
KDMH.U.1055.00.10 KDMH.I.1055.00.10 KDMH.A.1055.00.10
KDMH.U.1155.00.10 KDMH.I.1155.00.10 KDMH.A.1155.00.10
KDMH.U.1255.00.10 KDMH.I.1255.00.10 KDMH.A.1255.00.10
KDMH.U.1355.00.10 KDMH.I.1355.00.10 KDMH.A.1355.00.10
KDMH.U.1455.00.10 KDMH.I.1455.00.10 KDMH.A.1455.00.10

/* 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: Deep Groove Raceway
Material: 50mn or 42CrMo
Samples:
US$ 90/Piece
1 Piece(Min.Order)

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Customization:
Available

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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.

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.

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.

China Hot selling External Gear Teeth Turntable Bearings (KDM. A. 0844.00.10 KDM. A. 0944.00.10) Ball Swing Bearing Slewing Ring  China Hot selling External Gear Teeth Turntable Bearings (KDM. A. 0844.00.10 KDM. A. 0944.00.10) Ball Swing Bearing Slewing Ring
editor by Dream 2024-04-30

China Hot selling Ex200-3 Slewing Bearings Gear Ring for CHINAMFG 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

|

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

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.

Can you explain the primary functions and roles of slewing rings in various applications?

Slewing rings play crucial functions and serve different roles in various applications across industries. These specialized bearings enable controlled rotational movement and support heavy loads. Here’s a detailed explanation of the primary functions and roles of slewing rings in different applications:

  • Construction and Cranes: In construction machinery and cranes, slewing rings are used to support the boom or jib, enabling 360-degree rotation. They provide a stable and low-friction interface that allows for efficient material handling and precise positioning of heavy loads. Slewing rings in these applications must withstand high axial, radial, and moment loads.
  • Wind Turbines: Slewing rings play a critical role in wind turbine systems. They support the rotor and allow it to rotate according to wind direction, facilitating efficient power generation. Slewing rings in wind turbines must handle significant loads while ensuring smooth rotation and precise alignment between the rotor and the nacelle.
  • Industrial Equipment: Slewing rings find applications in various industrial equipment, including indexing tables, turntables, robotic arms, and packaging machinery. In these applications, slewing rings enable controlled and precise rotation, allowing for accurate positioning, indexing, and automation. They contribute to the overall efficiency and functionality of industrial machinery.
  • Transportation and Automotive: Slewing rings are utilized in transportation and automotive applications, such as vehicle cranes, aerial platforms, and rotating platforms for heavy-duty vehicles. They provide a stable and reliable connection that enables safe and controlled rotation. In these applications, slewing rings must withstand dynamic loads and harsh operating conditions while ensuring the safety and stability of the equipment.
  • Medical and Rehabilitation Equipment: Slewing rings are important components in medical and rehabilitation equipment, including patient lifts and adjustable beds. They enable smooth and controlled movement, allowing for easy and safe patient transfers and positioning. Slewing rings in these applications must provide precise and quiet operation, ensuring patient comfort and care.
  • Aerospace and Defense: Slewing rings are utilized in aerospace and defense applications, such as radar systems, missile launchers, and satellite antennas. They enable precise and controlled movement in critical systems, contributing to accurate tracking, targeting, and communication. Slewing rings in aerospace and defense applications must meet stringent requirements for reliability, precision, and durability.
  • Marine and Offshore: Slewing rings are employed in marine and offshore equipment, including cranes, davits, and rotating platforms on ships and offshore rigs. They enable heavy lifting and controlled rotation in challenging marine environments. Slewing rings in marine applications must be corrosion-resistant and capable of withstanding harsh weather conditions and high loads.

Overall, slewing rings serve as essential components in a wide range of applications, enabling controlled rotation, supporting heavy loads, and ensuring precise positioning. Their versatility and ability to withstand varying loads and operating conditions make them invaluable in industries such as construction, wind energy, industrial automation, transportation, healthcare, aerospace, and marine sectors.

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.

In what industries or scenarios are slewing rings commonly employed?

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

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

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

China Hot selling Ex200-3 Slewing Bearings Gear Ring for CHINAMFG Excavator  China Hot selling Ex200-3 Slewing Bearings Gear Ring for CHINAMFG Excavator
editor by CX 2024-03-27

China Hot selling Thin Section Slewing Bearing, Gear Ring

Product Description

About Fenghe

Provide customized industry solutions for you

 

  • 17 years producing experience, strict quality control can be the industry’s best solution guarantee.
  • China leading supplier for slewing bearing,the products have through ISO 9001,CAPE certifiaction,have more than 50 product patents.

  • Excellence in Quality and Precision Performance are constant hallmarks of all FENGHE products. Dialogue with the customer and a flexibility of approach combine with responsive design and development innovations to ensure superior delivery.

 

R&D/Maintenance

Engineers in Fenghe slewing bearing have an experience in turntable bearing over 17 years, they developed the R&D team and testing lab, continuous to making it extra stable and precision during the operation, Fenghe brand provide the best solution according to each customer with tailored products with many thousands of attempting.
 

Test

Life test

Application test

Environmental impacting test

Torque test

Vibration test

Measurement, inspection and analysis

Coordinate measuring machine (CMM)

Magnetic particle flaw detector (MT)

Ultrasonic detector (UT)

ScHangZhou electron microscope (SEM)

HDR digital microscope

Rockwell hardness

 

Product types

Own 20,000 production facility and 10,000 forging workshop.
Heat treated 6 times throughout production.

Model No.:012.40.1120
Brand: Fenghe
No. Of rows: Single row
Inner structure: ball
Gear option: Internal Gear,External Gear,No Gear
No. Of mounting holes: 36
Internal diameter:998mm
Outside diameter:1242mm
No. Of gear:95
Thickness: 110mm
Dimeter range: 200mm-7000mm
Material: 50Mn, 42CrMo

Types of our products:
single row ball slewing bearing
double row ball slewing bearing
three row roller slewing bearing
single row cross roller slewing bearing
double line ball slewing bearing
ball and roller combined slewing bearing

 

      Dimensions Fixing Holes Structure Size Gear data External gear data Internal gear data
Code Curva D       (mm) d                   (mm)    H    (mm) D1    (mm) D2   (mm) dn1     dn2    (mm) dm1    dm2   (mm) L    (mm) n1 D3    (mm) d1     (mm)    H1       (mm) h    (mm) b    (mm) m    (mm) da     (mm)    da    (mm)   
01.20.200 1 280 120 60 248 152 16 M14 28 12 2 201 199 50 10 40 3 300 98
01.20.224 2 304 144 60 272 176 16 M14 28 12 2 225 223 50 10 40 3 321 105
01.20.250 3 330 170 60 298 202 16 M14 28 18 2 251 249 50 10 40 4 352 86
01.20.280 4 360 200 60 328 232 16 M14 28 18 2 281 279 50 10 40 4 384 94
01.25.315 5 408 222 70 372 258 18 M16 32 20 2 316 314 60 10 50 5 435 85 190 40
01.25.355 6 448 262 70 412 298 18 M16 32 20 2 356 354 60 10 50 5 475 93 235 49
01.25.400 7 493 307 70 457 343 18 M16 32 20 2 401 399 60 10 50 6 528 86 276 48
01.25.450 8 543 357 70 507 393 18 M16 32 20 2 451 449 60 10 50 6 576 94 324 56
01.30.500 9 602 398 80 566 434 18 M16 32 20 4 501 498 70 10 60 5       6 629 628.8 123      102 367 368.4 74     62
01.25.500 10 602 398 80 566 434 18 M16 32 20 4 501 499 70 10 60 5       6 629  628.8 123     102 367 368.4 74       62
01.30.560 11 662 458 80 626 494 18 M16 32 20 4 561 558 70 10 60 5       6 689  688.8 135     112 427 428.4 86       72
01.25.560 12 662 458 80 626 494 18 M16 32 20 4 561 559 70 10 60 5       6 689 688.8 135      112 427 428.4 86       72
01.30.630 13 732 528 80 696 564 18 M16 32 24 4 631 628 70 10 60 6             8 772.8 774.4 126      94 494.4 491.2 83        62
01.25.630 14 732 528 80 696 564 18 M16 32 24 4 631 629 70 10 60 6       8 772.8 774.4 126      94 494.4 491.2 83       62
01.30.710 15 812 608 80 776 644 18 M16 32 24 4 711 708 70 10 60 6       8 850.8 854.4 139     104 572.4 571.2 96       72
01.25.710 16 812 608 80 776 644 18 M16 32 24 4 711 709 70 10 60 6       8 850.8 854.4 139     104 572.4 571.2 96       72
01.40.800 17 922 678 100 878 722 22 M20 40 30 6 801 798 90 10 80 8      10 966.4  968 118      94 635.2  634 80       64
01.30.800 18 922 678 100 878 722 22 M20 40 30 6 801 798 90 10 80 8      10 966.4 968 118      94 635.2 634 80       64
01.40.900 19 1571 778 100 978 822 22 M20 40 30 6 901 898 90 10 80 8      10 1062.4      1068 130     104 739.2  734 93       74
01.30.900 20 1571 778 100 978 822 22 M20  40 30 6 901 898 90 10 80 8      10 1062.4   1068 130     104 739.2 734 93       74
01.40.1000 21 1122 878 100 1078 922 22 M20 40 36 6 1001 998 90 10 80 10     12 1188  1185.6 116      96 824 820.8 83       69
01.30.1000 22 1122 878 100 1078 922 22 M20 40 36 6 1001 998 90 10 80 10     12 1188  1185.6 116      96 824  820.8 93       69
01.40.1120 23 1242 998 100 1198 1042 22 M20 40 36 6 1121 1118 90 10 80 10     12 1298 1305.6 127     106 944  940.8 95       79

 

     
       
       

Examples of use
Fenghe slewing bearings can even be used in the most demanding scopes of application.

We are committed to providing various standard and non-standard slewing bearing solutions for the machinery industry. If you have more questions forslewing rings and table bearings assembling, our in house engineers will pay attention to this parts and provide solutions to you.

Fenghe slewing bearings are widely applicationto the machinery industry and provide excellent precision for smoothly running. We do a lot of job in reducing weight, creating space, reducing friction and extending durable life. Fenghe offers a variety of raw materials, internal assembling, grease and corrosion resistance options. Fenghe offers the widest range of slewing bearings with P.C.D of 120mm to 5500mm.

Fenghe slewing ring is suitable for all kinds of harsh environments. Our technical research and development personnel focus on sealing protection during the slewing bearing operation, which effectively guarantees the internal lubrication of the slewing ring and prolongs the durable life.

 

NO. Internal Gear DL mm Dimensions Mounting dimensions Structural dimensions Gear data Gear circumferential force weig ht 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 Norma lizing Z 104N Quen ching T 104N
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  
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  
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  
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  
5 013.30.500 602 398 80 566 434 20 18 M16 32 4 501 498 70 10 60 1 5 367 74 3.7 5.2 85
014.30.500 6 368 62 4.5 6.2
5′ 013.25.500 602 398 80 566 434 20 18 M16 32 4 501 499 70 10 60 1 5 367 74 3.7 5.2 85
014.25.500 6 368 62 4.5 6.2
6 013.30.560 662 458 80 626 494 20 18 M16 32 4 561 558 70 10 60 1 5 427 86 3.7 5.2 95
014.30.560 6 428 72 4.5 6.2
6′ 013.25.560 662 458 80 626 494 20 18 M16 32 4 561 559 70 10 60 1 5 427 86 3.7 5.2 95
014.25.560 6 428 72 4.5 6.2
7 013.30.630 732 528 80 696 564 24 18 M16 32 4 631 628 70 10 60 1 6 494 83 4.5 6.2 110
014.30.630 8 491 62 6 8.3
7′ 013.25.630 732 528 80 696 564 24 18 M16 32 4 631 629 70 10 60 1 6 494 83 4.5 6.2 110
014.25.630 8 491 62 6 8.2
8 013.30.710 812 608 80 776 644 24 18 M16 32 4 711 708 70 10 60 1 6 572 96 4.5 6.2 120
014.30.710 8 571 72 6 8.3
8′ 013.25.710 812 608 80 776 644 24 18 M16 32 4 711 709 70 10 60 1 6 572 96 4.5 6.2 120
014.25.710 8 571 72 6 8.9
9 013.40.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 1 8 635 80 8 11.1 220
014.40.800 10 634 64 10 14
9′ 013.30.800 922 678 100 878 722 30 22 M20 40 6 801 798 90 10 80 1 8 635 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 1 8 739 93 8 11.1 240
014.40.900 10 734 74 10 14
10′ 013.30.900 1571 778 100 978 822 30 22 M20 40 6 901 898 90 10 80 1 8 739 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 1 10 824 83 10 14 270
014.40.1000 12 821 69 12 16.7
11′ 013.30.1000 1122 878 100 1078 922 36 22 M20 40 6 1001 998 90 10 80 1 10 824 83 10 14 270
014.30.1000 12 821 69 12 16.7
12 013.40.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 1 10 944 95 10 14 300
014.40.1120 12 941 79 12 16.7
12′ 013.30.1120 1242 998 100 1198 1042 36 22 M20 40 6 1121 1118 90 10 80 1 10 944 95 10 14 300
014.30.1120 12 941 79 12 16.7
13 013.45.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1252 1248 100 10 90 1 12 1049 88 13.5 18.8 420
014.45.1250 14 1042 75 15.8 21.9
13′ 013.35.1250 1390 1110 110 1337 1163 40 26 M24 48 5 1251 1248 100 10 90 1 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 1 12 1193 100 13.5 18.8 480
014.45.1400 14 1196 86 15.5 21.9
14′ 013.35.1400 1540 1260 110 1487 1313 40 26 M24 48 5 1401 1398 100 10 90 1 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 1 14 1392 100 15.8 21.9 550
014.45.1600 16 1382 87 18.1 25
15′ 013.35.1600 1740 1460 110 1687 1513 45 26 M24 48 5 1601 1598 100 10 90 1 14 1392 100 15.8 21.9 55, 0
014.35.1600 16 1382 87 18 25  
                                               

  /* 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

Usage: Machinery Parts
Transport Package: Sea Worthy Packing in Wooden Case
Specification: ISO9001: 2008/ISO14001: 2004/OHSAS 18001: 2007
Trademark: Feng He
Origin: Xuzhou, Jiangsu, China
Customization:
Available

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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.

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

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

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

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

How 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.

China Hot selling Thin Section Slewing Bearing, Gear Ring  China Hot selling Thin Section Slewing Bearing, Gear Ring
editor by CX 2024-03-26

China Hot selling 01-0289-06 External Gear Slewing Ring Bearing Slewing Gear Slewing Ring

Product Description


Production Description for Slewing Bearing, ring bearing, rolling bearings, turntables

Slewing Bearing 01-5719-06  for construction machinery, cranes
 

1 Type single row 4 point contact ball slewing bearing, ring bearing, slewing gear
2 Bore diameter 210mm
3 Outside diameter 379mm
4 Height 45mm
5 Material 42CrMo, 50Mn
6 Precision P0. P6. P5.
7 Cage/retainer Nylon or aluminum
8 Gear type External gear
9 N.W. 20KGS

External Diameter Internal Diameter Height  Weight  Module  Gear No. Model   *
244 125 25 5 2 120   STD 
318 169 45 14 3 104 STD 
379 210 45 20 4 92 STD 
403.5 234 55 25 4.5 88 STD 
440 265 50 28 4.5 95 STD 
505 304 56 32 5 99 SL
505 342 56 32 5 99 SLBP
529 323 54 45 5 103 STD 
535 305 75 61 8 65 STD 
589 383 75 62 5 116 STD 
640 434 56 44 6 105 SL
640 472 56 46 6 105 SLBP
654 390 85 98 8 80 STD 
689 455 74 89 6 112 STD 
700 479 77 85 6 114 STD 
742 534 56 52 6 122 SL
742 572 56 55 6 122 SLBP
774 516 82 118 8 94 STD 
816 573 90 129 6 132 STD 
840 634 56 60 6 138 SL
840 672 56 62 6 138 SLBP
863 679 82 102 6 142 STD 
886 610 85 155 8 108 STD 
950 734 56 68 8 117 SL
950 772 56 71 8 117 SLBP
979 717 100 178 10 94 STD 
1571 770 82 159 8 125 STD 
1046 834 56 76 8 129 21 0571 01 SL
1046 872 56 78 8 129 31 0571 01 SLBP
1094 833 82 179 8 134 STD 
1144 869 100 228 10 111 STD 
1198 984 56 86 8 148 SL
1198 1571 56 91 8 148 SLBP
1218 930 98 268 10 119 STD 
1289.5 984 114 330 10 125 STD 
1358 1045 98 325 10 133 STD 
1431 1200 63 176 8 177 STD 
1476 1084 110 503 10 144 STD 
1604 1206 130 653 10 157 STD 
1605 1270 110 469 12 131 STD 
1727 1500 63 213 8 214 STD
1836 1433 135 791 16 112 STD 
1929 1565 110 617 14 135 STD 
1975 1750 63 244 8 245 STD
2571 1615 150 1004 14 142 STD 
2140 1720 130 953 16 131 STD 
2165 1950 68 278 8 269 STD
2267 1815 140 1174 16 139 STD 
2342 2091 70 373 8 290 STD 
2390 1950 130 1111 18 130 STD 
2534 2042 144 1482 18 138 STD 
2695 2425 63 411 8 335 STD 
2790 2290 164 1895 18 151 STD 
3116 2600 164 2200 20 152 STD 
3200 2914 190 716 10 318 STD

Why choose CHINAMFG slewing bearings
A CHINAMFG in slewing bearing field, rich experience, can do design, produce, mounting guide
Small order accepted
ISO certified company
Variorum models
7*24hours hotline to help you with your cranes
Strict quality control system to ensure quality for slewing bearing

LYHY Slewing Bearing Types
CHINAMFG slewing bearings can be divided into the following types as per  their structures:
single row 4 point contact ball slewing bearing,
single row cross roller slewing bearing,
double row different ball diameter slewing bearing,
three row cylindrical roller slewing bearing and roller/ball combination slewing bearing.
And all these types of slewing bearings can be further divided into bearings without gears, bearings with external gears and bearings with internal gears.

Detailed description of these types slewing bearings

Single row 4 point contact ball slewing bearings
     This kind of slewing bearings can support high dynamic loads, transmitting axial and radial forces simultaneously as well as the resulting tilting moments. Applications of this kind of bearings are hoisting, mechanical handling and general mechanical engineering etc.
Single row cross roller slewing bearings
     This kind of bearings can support combinations of large radial force, medium axial force and tilting moment with small or zero clearance. Main applications of this kind of bearings are hoisting and mechanical handling and general mechanical engineering etc.
Double row different ball diameter 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.
Triple row cylindrical roller slewing bearings
     This kind of bearings has high load carrying capacity. Under same loads, this kind of bearings has much smaller diameters which can make the installation much compact, as different kinds of loads are supported by different races and rollers. Main applications of this kind of bearings are hoisting, mechanical handling, mining and materials handling, offshore technology and general mechanical engineering etc.
Roller/ball combination slewing bearings
     This kind of bearings can support high axial load and low tilting moments. Usually they are large diameter slewing bearings. Applications of this kind of bearings are mining and materials handling etc.

About CHINAMFG bearings
1.introduction:we are a manufacturer of slewing bearing since 1993, our factory occupies a area of 30000square meters with 4 workshop and 1 office building. 
2. Featured products: slewing bearing and slewing drive
3. Capital: Current is 1 million RMB, but we are increasing the capital to 10 million RMB
4. Workers: 40
5. Certificate: ISO9001:2008, 3.1 certificate, CCS certificate, Science and Technology Progress Award
6. Annual Exportation: 8million USD
7. Exported countries: (39)
Asia: India, Pakistan, Iran, Signore, Georgia, Malaysia, Vietnam, Thailand, Philippines, Israel, Korea, UAE, Sri Lanka, Saudi Arabia,
Europe: Turkey, Russia, Spain, Czech Republic, Italy, Poland, Slovakia, Bosnia and Herzegovina, Austria, France, Germany, Switzerland, Finland, Ukraine, UK
America: USA, Canada, Mexico, Brazil, Puerto Rico, Peru, Chile
Africa: South Africa, Egypt
Oceania: Australia

Production Process of CHINAMFG slewing bearings

Quality Control Process of CHINAMFG slewing bearings

LYHY Slewing Bearing 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;

Slewing Ring Bearings——Applications:
Slewing ring bearings are widely used in industry and known as “the machine joints” Here under is the specific slewing bearing applications
1. Construction machinery (e.g. cranes, excavators, loader, scraper)
2. Metallurgical machinery (e.g. for steel plant)
3. Heavy machinery equipment (e.g. mining machinery, concrete machinery)
4. Marine machinery equipment (e.g. vessel, port hoisting machine, port oil transfer equipment, onshore and offshore crane)
5. Light machinery equipment (e.g. paper machine, plastic, rubber machine, weave machine)
6. Wind power generator
7. Packing machinery

Transportation:
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.
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.

INSTALLATION OF CHINAMFG SLEWING BEARINGS

Preparation:
Make sure that the model is correct and slewing bearing isn’t damaged during transportation.
2.  Check the appearance and rotational state of the bearing, such as rotational precision clearance, rotating flexibility, seals position, lubrication grease etc.
3.  The installation datum plane and bracket installing plane should be clean, grease, burr, paint and other foreign body should be wiped off.

Installation:

1. The screws in the installing plane should be fit with the mounting holes in the slewing bearing
2.  The slewing bearing has a soft zone marked with an “s” on the upper surface, when installing the bearing, it is important to ensure that this area is placed in a non-load or infrequent load zone.
3.  When the bearing is placed on the supporting frame work it is important to check the interface between these 2 surfaces. This check should be carried out with the insertion of feel gauges between the 2 surfaces. If a gap should exist then it is recommended to plane/resurface the effective area so as to remove the gap.
4.  Install slewing bearing with high strength screws, and choose appropriate strength bolts. All bolts are required to be tightened evenly. The sequence of this tightening process is shown in Pic. Welding of bearing is not allowed, in the event of welding any adjacent parts, heat transfer shall be avoided so as to cause the bearing to become deformed or change the hardness.
5.  After installation, the bearing should be rotated to check for smooth operation and any emission of unusual noise. If either of the aforementioned are noted, then the bearing should be adjusted to eliminate them. The teeth of the largest run-out are coated with green paint.

FAQ:

Q: Are LYHY BEARINGS trading company or manufacturer?
A: CHINAMFG BEARINGS is a professional manufacturer for slewing bearings, thin section bearings, ball bearings and rolling bearings

Q: How do LYHY BEARINGS control quality of their bearing?
A: LYHY BEARINGS has established strict quality control systems, all the products and services has passed ISO9001-2008 Quality Certificate and third party such as CCS, LR,ABS,BV

Q: What is the MOQ?
A: MOQ is 1pc, pls message us for detailed information.

Q: How about the package for CHINAMFG bearings?
A: Standard Industrial packing in general condition (Plastic tube+ professional plastic belts+ plywood case). Accept design package when OEM.

Q: How long is the production time?
A: It takes about 7-40 days, depends on the model and quantity.

Q: How about the shipping?
A: We can arrange the shipment or you may have your own forwarder.

Q: Is sample available?
A: Yes, sample order is acceptable.

Q: Can we use our own LOGO or design on bearings?
A: Yes. OEM is acceptable for LYHY BEARINGS. We can design as per your requirements and use your own LOGO and package design.

  /* March 10, 2571 17:59:20 */!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
Sealing Gland: Sealed On Both Sides
Rolling-Element Number: Single-Row
Roller Type: Four Point Contact Ball
Material: 50mn, 42CrMo
Type: External Gear
Samples:
US$ 100/Piece
1 Piece(Min.Order)

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Customization:
Available

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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.

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.

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.

China Hot selling 01-0289-06 External Gear Slewing Ring Bearing Slewing Gear Slewing Ring  China Hot selling 01-0289-06 External Gear Slewing Ring Bearing Slewing Gear Slewing Ring
editor by CX 2024-02-24

China Hot selling Nk250-V Excavator Internal Gear Slewing Bearing Slewing Ring Bearing Turntable Bearing bearing and race

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 1 HD 250SE   HD 770E2   HD 405-6  566-52-11461 HD12 HD 770   KR35H-III   Kato 35H-V   HD 1571   SR350   NK-2 NK-2 SS-5 KATO NK200    SR250   NK400E-3   Kato KR35HV-3      

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

Standard or Nonstandard: Standard
Feature: Short Delivery Time
Sealing Gland: Seal Rings
Rolling-Element Number: Single Row
Roller Type: Four Point Contact
Material: 50mn/42CrMo
Samples:
US$ 1150/Set
1 Set(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

bushing

Industrial applications of casing

For rotating and sliding parts, bushings are an important part of the machine. Due to their anti-friction properties and load-carrying capacity, they are an important part of many different industrial processes. Bushings play a vital role in industries such as construction, mining, hydropower, agriculture, transportation, food processing and material handling. To learn more about the benefits of bushings, read on. You’ll be amazed how much they can help your business!

type

When comparing enclosure types, consider the material and how it will be used. Oilite bushings are made of porous material that draws lubricant into the liner and releases it when pressure is applied. These are manufactured using a sintered or powered metal process. Copper and tin are the most commonly used materials for making copper bushings, but there are other types of metal bushings as well.
Another popular type is the plain bearing. This type reduces friction between the rotating shaft and the stationary support element. This type provides support and load bearing while relying on soft metal or plastic for lubrication. Journal bearings are used to support the linear motion of the engine crankshaft in large turbines. They are usually babbitt or hydrodynamic with a liquid film lubricant between the two halves.
The oil-impregnated paper sleeve is made of high-quality kraft insulating paper. These bushings contain two layers of capacitor grading, with the innermost layer electrically connected to the mounting flange. These are mature processes and are widely used in different voltage levels. CZPT Electric (Group) Co., Ltd. provides UHV DC and AC oil-impregnated paper wall bushings for environmental control rooms.
Electrical bushings are used to transmit electricity. These can be transformers, circuit breakers, shunt reactors and power capacitors. The bushing can be built into the bushing or through the bushing. The conductors must be able to carry the rated current without overheating the adjacent insulation. A typical bushing design has a conductor made of copper or aluminum with insulation on all other sides. If the bushing is used in a circuit, the insulation needs to be high enough to prevent any leakage paths.
Voltage and current ratings of electrical bushings. Solid type electrical bushings typically have a center conductor and a porcelain or epoxy insulator. These bushings are used in small distribution transformers and large generator step-up transformers. Their test voltage is typically around 70 kV. Subsequent applications of this bushing may require a lower halfway release limit. However, this is a common type for many other applications.
bushing

application

Various industrial applications involve the use of casing. It is an excellent mechanical and chemical material with a wide range of properties. These compounds are also packaged according to national and international standards. Therefore, bushings are used in many different types of machines and equipment. This article will focus on the main industrial applications of casing. This article will also explain what a casing is and what it can do. For more information, click here. Casing application
Among other uses, bushing assemblies are used in aircraft and machinery. For example, a fuel tank of an aircraft may include baffle isolator 40 . The bushing assembly 16 serves as an interface to the fuel tank, allowing electrical current to flow. It can also be used to isolate one component from another. In some cases, bushing assemblies are used to provide a tight fit and reduce electrical resistance, which is important in circuits.
The benefits of casing go beyond reducing energy transmission. They reduce lubrication costs. If two metal parts are in direct contact, lubrication is required. Thus, the bushing reduces the need for lubrication. They also allow parts of the car to move freely. For example, rubber bushings may begin to deteriorate due to high internal temperatures or cold weather. Also, oil can affect their performance.
For example, bushing CTs in oil and gas circuit breakers are used as window current transformers. It consists of a toroidal core and secondary windings. The center conductor of the bushing acts as the single-turn primary of the BCT. By tapping the secondary winding, the ratio between primary and secondary can be changed. This information can be found on the asset nameplate.
Among other uses, bushings are used in diagnostic equipment. These components require precise positioning. Fortunately, air sleeves are perfect for this purpose. Their frictionless operation eliminates the possibility of misalignment. In addition, products based on porous media help minimize noise. A casing manufacturer can advise you on the best product for your equipment. Therefore, if you are looking for replacement bushings for your existing equipment, please feel free to contact Daikin.

Material

Dry ferrule cores were selected for study and examined under an Olympus polarizing microscope (BX51-P). Core slices showing layers of aluminum foil with a distance of approximately 2 cm between adjacent capacitor screens. The aluminum foil surface has a multi-layered structure with undulations due to shrinkage and crepe. Differences between the two types of foils are also revealed.
A typical metal bushing material consists of a high-strength metal backing and a solid lubricant. These materials have higher load-carrying capacity and low friction during operation. Additionally, they are precision machined to tight tolerances. They also offer better thermal conductivity and better fatigue resistance. The accuracy of the metal bushing is improved due to the re-machining process that takes place after the bearing is assembled. Additionally, metal bushing materials are more resistant to wear than plastic bushing materials.
Plastic bushings are relatively inexpensive and readily available off the shelf. Also, the price of custom plastic bushings is relatively low. However, they are not recommended for heavy duty applications. Plastics degrade under high loads and can damage mating parts. Also, if the plastic bushings are not manufactured accurately, they can become misaligned. These are just some of the reasons for choosing metal bushings over plastic.
A mechanically bonded bushing 40 is placed over the stabilizer bar and compressed into the outer sleeve/bracket assembly. The outer metal member includes slotted holes that compensate for the tolerance stacking between the first and second bushing assemblies. Pre-assembly allows the assembly plant to receive a complete assembly ready for vehicle assembly, rather than sub-assembly at the vehicle manufacturing plant.
bushing

cost

Control arm bushings are a major component of modern vehicle suspension systems. Damaged bushings can negatively affect the handling and performance of your car. Replacing bushings on a car can cost $200 to $500. While that’s pretty cheap for a handful of control bushings, replacing the entire suspension system could set you back over $1,200. Thankfully, if you want to repair or replace the bushing yourself, you can do it yourself for a fraction of the cost.
If you decide to replace the control arm bushing yourself, it’s best to shop around for the best price. Many auto parts stores offer cheaper bushings that you don’t have to spend a fortune on. Even if you don’t drive for years, rubber can degrade and create cracks in the material. These cracks can be as deep as three-eighths of an inch. This makes it dangerous to drive a car with damaged control arm bushings.
Hiring a mechanic might be a good idea if you don’t like doing the work yourself. You can save money and time by repairing the control arm yourself, but you may have to hire a mechanic to do the job. Replacing the front sway bar bushing alone can cost between $450 and $900. While these components are relatively inexpensive, you can replace them for a better-handling car.
In some cases, sizing the bushings is a more economical option, but if you want to replace your entire suspension system, it’s better to buy a brand new lower limit. You can even save labor by buying a replacement part fork with a good lower portion. In addition to improving your car’s handling and ride, new bushings will add to your car’s overall value. If you are not sure which parts you need, ask your mechanic for a quote.
While the cost of replacing control arm bushings is relatively low, it’s a good idea to compare quotes from multiple mechanics. By getting multiple quotes for the same repair, you can save as much as $50 to $100 on the total cost of your car. In addition to labor costs, parts and labor can vary, so shop around to find the mechanic best suited for your car. There’s no reason to settle for sub-par service when you can save $50 or more!

China Hot selling Nk250-V Excavator Internal Gear Slewing Bearing Slewing Ring Bearing Turntable Bearing   bearing and raceChina Hot selling Nk250-V Excavator Internal Gear Slewing Bearing Slewing Ring Bearing Turntable Bearing   bearing and race
editor by CX 2023-11-23

China TEM Slewing bearing Swivel gear turntable excavator swing bearing for pc200 with Hot selling

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bearing

Choosing the Right Ball Bearing for Your Application

When choosing a Ball Bearing, there are several things to consider. These factors include: the size, lubricant type, presence of corrosive agents, stray electrical currents, and more. It can be challenging to choose the right type, size, and type of ball bearing for your application. You should also carefully calculate the loads to determine the right size. Here are some tips for choosing the right Ball Bearing for your application.

Single-row

The single-row ball bearing is one of the most popular types of bearings. The inner and outer ring are designed with raceway grooves that are shaped slightly larger than the balls. This type of bearing has a low torque and can handle high-speed applications with minimal power loss. The radial dimensions of single-row ball bearings also vary, so it is possible to find one that fits your specific application. Besides the above-mentioned advantages, single-row ball bearings are also available with varying grease levels and are widely applicable to applications where the space is limited.
Single-row ball bearings are also called angular-contact ball bearings. Because of their single-row design, they are not separable and can accommodate a high-speed, heavy-duty application. Single-row angular-contact ball bearings can only handle axial load in one direction, and they must be installed in pairs for pure radial loads. Single-row ball bearings are a popular type of rolling bearings and can be used for a wide range of applications.

Self-aligning

The self-aligning ball bearing was invented by Sven Wingquist, a plant engineer for a textile company in Sweden. While he was responsible for making production as efficient as possible, he soon realized that the machinery he had in place wasn’t working as efficiently as it could. Although ball bearings are great for reducing friction, they were not flexible enough to compensate for misalignments in the machine.
Self-aligning ball bearings have two rows of balls and a common sphered raceway. The inner ring is curved and combines the two rows of balls into one cage. These bearings can tolerate shaft misalignment and compensate for static angular defects. They can be used in simple woodworking machinery, ventilators, and conveying equipment. They are often the preferred choice for applications where shaft alignment is an issue.

Ceramic

A Ceramic ball bearing is a type of high-performance bearing that is available in both full-ceramic and hybrid forms. The main differences between ceramic and steel ball bearings are their construction, lubrication, and mobility. High-quality ceramic ball bearings are durable, and they are ideal for corrosive and high-temperature applications. The material used to create these bearings helps prevent electrolytic corrosion. They are also ideal for reducing the friction and lubrication requirements.
Ceramic balls are harder and less brittle than steel balls, which gives them a higher degree of rigidity. Ceramics also have a higher hardness, with a hardness of Rc75-80 compared to Rc58-64 for steel balls. Their high compressive strength is approximately 5 to 7 times greater than steel. In addition, they have a very low coefficient of friction, which allows them to spin at higher speeds and with less friction. This increases their lifespan and durability, and decreases the energy needed to turn cranks.

Steel

Unlike traditional bearings, steel balls have a relatively uniform hardness. Carbon steel, for instance, is 2.1% carbon by weight. According to the American Iron and Steel Institute, copper content must be no more than 0.40% and manganese content should not be more than 1.65 g/cm3. After carbonizing, steel balls undergo a process called sizing, which improves their roundness geometry and hardness.
The main differences between steel ball bearings and ceramic ball bearings can be traced to their different materials. Ceramic balls are made from zirconium dioxide or silicon nitride. Silicon nitride is harder than steel and resists shocks. The result is increased speed and longer service life. Polyoxymethylene acetal (PMMA) bearing balls are known for their stiffness, strength, and tolerance, but are not as common as steel ball bearings.

Plastic

The most popular types of plastic ball bearings are made of polypropylene or PTFE. These bearings are used in applications requiring higher chemical resistance. Polypropylene is a structural polymer that offers excellent physical and chemical properties, including excellent resistance to organic solvents and degreasing agents. Its lightweight, low moisture absorption rate, and good heat resistance make it an excellent choice for high-temperature applications. However, plastic bearings are not without their drawbacks, especially when operating at very high temperatures or under heavy loads.
Compared to metal bearings, plastic ball-bearings do not require lubrication. They also are highly corrosion-resistant, making them an excellent choice for wash-down applications. They are also post-, autoclave-, and gamma sterilizable. Many conventional steel ball-bearings cannot handle the high temperatures of food processing or swimming pools. In addition to high temperature applications, plastic ball bearings are resistant to chemicals, including chlorine.
bearing

Glass

Plastic sliding bearings are molded bearings made of engineering plastic. With self-lubricating modification technology, these bearings can be produced by injection molding of plastic beads. They are widely used in various industries such as office equipment, fitness and automotive equipment. In addition to plastic bearings, glass balls are used in a variety of other applications, including medical equipment. Glass ball bearings have excellent corrosion resistance, excellent mechanical properties, and are electrically insulators.
Plastic ball bearings are made of all-plastic races and cages. These bearings are suitable for applications that are exposed to acids and alkalis. Because they are cheaper than glass balls, plastic ball bearings are popular in chemical-exposed environments. Stainless steel balls are also resistant to heat and corrosion. But the main disadvantage of plastic ball bearings is that they are not as strong as glass balls. So, if weight and noise is your main concern, consider using plastic balls instead.

Miniature

The global miniature ball bearing market is expected to reach US$ 2.39 Billion by 2027, at a CAGR of 7.2%. Growth in the region is attributed to technological advancement and government initiatives. Countries such as India and China are attracting FDIs and emphasizing the establishment of a global manufacturing hub. This is boosting the market for miniature ball bearings. The miniscule ball bearings are manufactured in small quantities and are very small.
Some manufacturers produce miniature ball bearings in different materials and designs. Chrome steel is the most popular material for miniature ball bearings because of its high load capacity, low noise properties, and lower cost. But the cost of stainless steel miniature bearings is low, since the amount of steel used is minimal. Stainless steel miniature bearings are the smallest in size. Therefore, you can choose stainless steel mini ball bearings for high-speed applications.

Angular-contact

Angular-contact ball bearings have three components: a cage, inner ring, and balls. Angular-contact ball bearings can support high axial and radial loads. Various design and manufacturing attributes make angular-contact ball bearings suitable for a variety of applications. Some features of this bearing type include a special lubricant, different cage materials, and different coatings.
The size of an angular-contact ball bearing is determined by the design units: outer ring width, axial load, and radial load. Depending on the type of application, an angular-contact ball bearing may be manufactured in double-row, triple-row, or quadruple-row configurations. Angular contact ball bearings can be classified according to their design units, which range from metric to imperial. A higher ABEC number means tighter tolerances. To determine the tolerance equivalent of a particular bearing, consult a standard Angular-contact ball bearing table.
Angular-contact ball bearings feature high and low-shoulder configurations. They have two-dimensional races that accommodate axial and radial loads. They are available in self-retaining units with solid inner and outer rings, and ball and cage assemblies. Cages made of cast and wrought brass are the most popular, but lightweight phenolic cages are also available. The latter is a better choice because it doesn’t absorb oil and has lower rolling friction.
bearing

Materials

When it comes to the construction of a ball bearing, high-quality raw materials are a crucial component. These materials not only affect the overall quality of a ball bearing, but also influence the cost. That’s why you should pay close attention to raw material quality. In addition to that, raw materials should be tested several times before the manufacturing process to ensure quality. Read on for some information about the different types of materials used to make ball bearings.
Steel is the most common material for ball bearings. Most ball bearings contain stainless steel balls, which are remarkably corrosion-resistant. They are also resistant to saltwater and alkalis. However, stainless steel balls are heavier than plastic ones, and they are also magnetic, which may be a drawback in some applications. If you’re looking for a metal-free option, glass balls are the way to go. They’re sturdy, lightweight, and resistant to a wide range of chemicals.

China TEM Slewing bearing Swivel gear turntable excavator swing bearing for pc200     with Hot sellingChina TEM Slewing bearing Swivel gear turntable excavator swing bearing for pc200     with Hot selling
editor by czh 2023-06-27

China Hot Sale Excavator Swing Bearing For Hitachi Swing Bearing for Kubota 155 Swing Gear Excavator Parts top with high quality

Issue: New, New100%
Relevant Industries: Creating Material Outlets, Machinery Fix Outlets, Production Plant, Retail, Design works , Power & Mining, Other
Showroom Spot: None
Video outgoing-inspection: Presented
Machinery Test Report: Presented
Advertising Type: Regular Product
Warranty: 2 a long time
Certification: ISO9001:2008
MOQ: 1 Piece
Materials: Iron
Device product: EX200
OEM: Avaliable
Fat: 250kg
Color: unique shade
Shipment: FedEx DHL UPS EMS SEA
Power: 220V
Packaging Information: Carton bins,pallet

Products Description Advantages:1.Maker,owe manufacturing facility.Warmly welcome to visit us.2.Above twenty years encounter in design manchinery business.3.Large good quality with very good material.4.Aggressive price tag with very good top quality.5.All sorts of sorts and different excess weight for selection.6.You can discover all the excavator elements from us.7.Small quality in stock.8.Offer OEM service. Speak to us if you would like any additional details or data on any of Substantial high quality equipment spare elements , YF01 Line CuttingOil InjectionWinding Custom Different Massager Electrical Steel Motor Areas Stator And Rotor Laminated Cores and we will be morethan happy to solution any concerns that you might have Merchandise Requirements

NoItemBrandBrandBrandBrandBrand
1BucketKOMATSUHITACHICATERPILLARKOBELCOOther makes
2Bucket enamelKOMATSUHITACHICATERPILLARKOBELCOOther manufacturers
3Track cylinderKOMATSUHITACHICATERPILLARKOBELCOOther makes
4High rigidity springKOMATSUHITACHICATERPILLARKOBELCOOther brands
5Track adjuster assyKOMATSUHITACHICATERPILLARKOBELCOOther brands
6H urlKOMATSUHITACHICATERPILLARKOBELCOOther makes
7Side urlKOMATSUHITACHICATERPILLARKOBELCOOther brand names
8Slewing bearingKOMATSUHITACHICATERPILLARKOBELCOOther manufacturers
9Track cylinderKOMATSUHITACHICATERPILLARKOBELCOOther manufacturers
10Other spare areasKOMATSUHITACHICATERPILLARKOBELCOOther brand names
Profitable Task Client from London Domestic consumer Customer from Pakistan Organization Profile Exhibition Make contact with us Packing & Shipping and delivery FAQ one. You are a trader or a manufacture?We are an sector and trade integration company, our manufacturing unit situated on ZheJiang Nan Chang District, and our product sales division is in City middle of HangZhou. 2. How can I be confident the element will suit my excavator?Give us proper design number/machine serial quantity/ any quantities on the components by itself. Or measure the parts give us dimension or drawing.3. How about the payment conditions?We normally settle for T/T or L/C. other terms also could be negotiated.4. what providers can we supply? Approved Shipping Terms: FOB,CFR,CIF,EXW; Accepted Payment Existing:USD,EUR,CNY Linear bearing miniature linear bearing linear motion bearings Acknowledged Payment Kind: T/T,L/C,Credit score Card,Western Union,Income Language Spoken:English,Chinese5. What is your supply time?FOB HangZhou or any Chinese port : twenty five-35 times . If there are any parts in inventory , our delivery time is only 7-10 times. 6. What about Quality Manage?We have a excellent QC method for the best products. A team who will detect the item quality and specification piececarefully, checking each creation process until packing is full, to ensure item protection into container.

What is the purpose of the bushing?

If you notice the truck making noises when cornering, the bushings may be worn. You may need to replace the ball joint or stabilizer bar, but a simple inspection will reveal that the noise is coming from the bushing. The noise from a worn bushing on a metal joint can mimic the sound of other problems in the suspension, such as a loose stabilizer bar or a failed ball joint.
bushing

Function

What is the purpose of the bushing? They play an important role in the operation of various mechanical parts. Their main functions include reducing the clearance between the shaft and the bearing and reducing the leakage of the valve. Bushings are used in different ways to ensure smooth operation and longevity. However, some new designers don’t appreciate the functionality of the case. So let’s discuss these features. Some of their most common applications are listed below.
First, the shell does a lot of things. They reduce noise, control vibration, and provide amazing protection for all kinds of industrial equipment. Large industrial equipment faces more wear, vibration and noise, which can render it completely inoperable. Bushings help prevent this by reducing noise and vibration. Bushing sets also extend equipment life and improve its performance. Therefore, you should not underestimate the importance of the casing in your device.
Another common function of bushings is to support components during assembly. In other words, the bushing reduces the risk of machine wear. In addition to this, they are superior to bearings, which are notoriously expensive to maintain. However, they are still useful, and their versatility cannot be overemphasized. If you’re considering installing one, you’ll be glad you did! These products have become a necessity in the modern industrial world. If you’re wondering how to choose one, here are some of the most common bushing uses.
Electrical bushings are an important part of many electrical equipment. They carry high voltage currents through the enclosure and provide an insulating barrier between live conductors and metal bodies at ground potential. They are made of a central conductive rod (usually copper or aluminum) and surrounding insulators made of composite resin silicone rubber. Additionally, the bushings are made of various materials. Whether copper, aluminum or plastic, they are an important part of many types of electrical equipment.

type

There are several different types of bushings on the market today. They may be cheap but they are of good quality. These products can be used in telephones, cable television, computer data lines and alarm systems. The key to buying these products online is finding the right appliance store and choosing a high-quality product. An online appliance store should have comprehensive information and ease of use. For the right electrical bushing, you should look for reliable online stores with the best prices and high quality products.
Capacitive grading bushings use conductive foils inserted into paper to stabilize the electric field and balance the internal energy of the bushing. The conductive foil acts as a capacitive element, connecting the high voltage conductor to ground. These types of bushings are sometimes referred to as capacitor grade bushings. Capacitive grading bushings are usually made of paper impregnated with epoxy resin or mineral oil.
When buying enclosures, you should know how they are used. Unlike ball bearings, bushings should be stored upright so that they are in the correct working position. This is because horizontal placement can cause air bubbles to form in the fill insulation. It is also important to store the bushing properly to prevent damage. The wrong way to store these components can result in costly repairs.
In addition to the physical structure, the bushing insulation must also be effective over the long term. It must resist partial discharge and working electric field stress. The material and design of the bushing can vary widely. Early on, porcelain-based materials were popular in bushing designs. Porcelain was chosen because of its low cost of production and very low linear expansion. Ceramic bushings, on the other hand, require a lot of metal fittings and flexible seals.
bushing

Durability

The RIG 3 Bushing Durability Test Standard simulates real-world service conditions for automotive bushings. This three-channel test standard varies casing loads and stresses by applying a range of different load conditions and various control factors. This test is critical to the durability of the case, as it accurately reproduces the dynamic loads that occur during normal use. This test is a key component of the automotive industry and is widely used in many industries.
The Advanced Casing Model has five modules to address asymmetry, nonlinearity, and hysteresis. This model also represents the CZPT lag model. The model can be parameterized in the time domain using MATLAB, and the results can be exported to other simulation software. The developed bushing model is a key component in the durability and performance of vehicle suspension components.
A conductive material is coated on the inner surface of the sleeve. The coating is chosen to conduct a certain amount of current. The conductive path extends from the blade spacer 126 to the sleeve projecting edge 204 and then through the housing 62 to the ground. The coating is made of a low friction material and acts as a wear surface against the bushing sidewall 212 and the housing 62 .
Another important factor in a bushing’s durability is its ability to friction. The higher the operating speed, the greater the load on the bushing. Since bushings are designed for lighter loads and slower speeds, they cannot handle large loads at high speeds. The P-max or V-max value of a bushing is its maximum load or speed at 0 rpm. The PV value must be lower than the manufacturer’s PV value.

price

If you need to replace the bushing on the control arm, you should understand the cost involved. This repair can be expensive, depending on the make and model of your car. Generally, you should pay between $105 and $180 for a replacement. However, you can choose to have it done by a mechanic at a lower cost. The labor cost for this job can be around $160, depending on your automaker.
The cost of replacing the control arm bushings can range from $200 on the low end to $500 on a luxury car. While parts are cheap, labor costs are the highest. Mechanics had to remove suspension and wheel assemblies to replace bushings. If you have some mechanical knowledge, you can replace the bushing yourself. Control arm bushings on the wheel side are usually about $20 each. Still, if you’re not a mechanic, you can save money by doing it yourself.
bushing

Install

Press-fit bushings are installed using a retaining ring with a diameter 0.3/0.4 mm larger than the inner diameter of the bushing. To ensure accurate installation, use a mechanically driven, pneumatic or hydraulic drill and insert the bushing into the appropriate hole. This process is best done using mounting holes with drilled holes for the clamps. Make sure the mounting hole is in the center of the bushing and free of debris.
Once the bushing is positioned, use a vise to install its nut. A cold bushing will compress and fit the shell better. Place the sleeve in the refrigerator for at least 24 hours to aid installation. After removing the bushing from the refrigerator, make sure it has enough diameter to fit into the enclosure. Next, place the opposite socket into the enclosure and use it as a stand. After a few minutes, the bushing should be fully seated in the housing.
Install the new bushing into the housing hole. If the previous one had a metal case, insert the new one through the taper. Always lubricate the inner and outer surfaces of the bushing. Then, apply pressure to the inner metal sleeve of the new bushing. You may notice that the new bushing does not exactly match the housing hole. However, that’s okay because the outer diameter of the bushing is larger than the outer diameter of the hub drive.
The installation of the bushing requires the use of the hydraulic unit 16 . Hydraulic unit 16 is located near the #1 journal of the camshaft and extends from #2 to #7. Hydraulic fluid forces piston 22 away from the outer end of cylinder 20 and pushes shaft 14 forward. The shaft is then moved forward, pushing the bushing 17 onto the piston. Multiple bushings can be installed in a single engine.

China Hot Sale Excavator Swing Bearing For Hitachi Swing Bearing for Kubota 155 Swing Gear Excavator Parts top     with high qualityChina Hot Sale Excavator Swing Bearing For Hitachi Swing Bearing for Kubota 155 Swing Gear Excavator Parts top     with high quality
editor by czh 2023-03-20

China Standard High Quality Plastic Drinking Water Valve Price PVC Thermoplastic Wafer Type Butterfly Valve UPVC Manual Handle Double Flange Worm Gear Butterfly Valve with Hot selling

Merchandise Description

Higher High quality

Plastic Drinking H2o Valve Value
PVC Thermoplastic Wafer Sort Butterfly Valve
UPVC Guide Handle Double Flange Worm Gear Butterfly Valve 
DIN ANSI JIS Standard
DN50-DN400 ( 2″-sixteen” )

PVC Butterfly Valve for Water Supply DIN ANSI JIS Standard
DN.50mm to DN.400mm

Attributes
Water Supply
Material : PVC-U
Standard : DIN ANSI JIS Common
Connection : Flange
SIZE : DN50 ( 63mm ) 2″ ~ DN400 (400mm ) sixteen”
Working Pressure : 150PSI one.0 MPa
                                    100PSI  0.6MPa
Color : Dark
Grey

PVC  Thermoplastic  Butterfly Valve DIN, ANSI, JIS Standard
DN50-DN400 ( 2″-sixteen” )

 

PVC Butterfly Valve ( Amount & Equipment )

FRPP Butterfly Valve  ( Amount & Equipment )

PVC Non Actuator Butterfly Valve for Electric powered & Pneumatic Actuator Usage

   With Carbon Metal Stem #forty five. Disc with PVC.  Seat & O-Ring with EPDM Rubber.          

  With Stainless Steel Stem # 304.  Disc with PVC.  Seat & O-Ring with EPDM Rubber     

With Stainless Steel  Stem # 316.  Disc with PVC.  Seat & O-Ring with EPDM Rubber

With Stainless Steel  Stem # 304.  Disc with PVC.  Seat & O-Ring with FPM Rubber

With Stainless Metal  Stem #316.  Disc with PVC  Seat & O-Ring with FPM Rubber.

PVC-U FRPP Butterfly Valve for Electrical & Pneumatic Actuator Usage
DN50-DNfour00 ( 2″- one6” )

DN50 – DN150 (2″- 6″) 100PSI PN0.8MPa  
DN200-DN300 (8″- 12″) 80PSI  PN0.5MPa
DN350-DN400 (14″- 16″) 60PSI  PN0.4MPa

Regular:  DIN, ANSI, JIS Normal      
Hi-Top quality   Low Torque   Acid-Evidence   Alkali-Proof   100% Test

Can be Custom-made
Diverse Sizes Shaft of Sq., Oblate, Spherical Keyway

Large the Valve Body, Thicken the Valve Plate
Thicken the Valve Stem, the Valve Stem Limit

With Carbon Steel Stem #45 & EPDM Rubber
With Stainless Metal Stem #304 & EPDM / FPM Rubber
With Stainless Steel  Stem #316 & EPDM / FPM Rubber

Built-in Structure of Valve Seat and Valve Entire body

Actuator Mounting Gap
with ISO5211 Common With no Bracket, Immediate Link

PVC-U FRPP Butterfly Valve ( Lever Kind ) DN50-DN200 ( 2″- 8″ )

Operating Strain:  
DN50-DN150 ( 2″- 6″ ) 150PSI  PN1.0MPa
DN200 ( 8″ ) 90PSI  PN0.6MPa   
                                  
Normal: DIN, ANSI, JIS Common
Hello-Top quality, Reduced Torque, Lockable, Acid-Evidence, Alkali-Evidence, a hundred% Check

PVC Butterfly Valve Patent Technologies
Increase the Locking Gap to Lock the Valve

Integrated Structure of Valve Seat and Valve Body.                                                                                                      
Heavy the Valve Body, Thicken the Valve Plate
Thicken the Valve Stem, the Valve Stem Restrict
  
With Carbon Steel Stem #forty five & EPDM Rubber
With Stainless Steel Stem #304 & EPDM / FPM Rubber
With Stainless Steel  Stem #316 & EPDM / FPM Rubber
More time & Broader Handle,Take care of Lever Larger, Energy Procedure

PVC-U FRPP Butterfly Valve ( Equipment Type ) DN50-DN400 ( 2″- 16″ )

DN50-DN200 (2″- 8″) 150PSI PN1.0MPa  
DN250-DN300 (ten”- 12″) 90PSI  PN0.6MPa
DN350-DN400 (14″- 16″) 60PSI  PN0.4MPa

Common:  DIN, ANSI, JIS Normal      
Hello-Quality   Low Torque   Acid-Proof   Alkali-Evidence   100% Take a look at

              Hygienic Stage PVC Uncooked Content Injection              
Equipment Box and Hand Wheel Can Be Produced of Plastic

Integrated Framework of Valve Seat and Valve Body

With Carbon Metal Stem #45 & EPDM Rubber
With Stainless Metal Stem #304 & EPDM / FPM Rubber
With Stainless Steel  Stem #316 & EPDM / FPM Rubber
 

An Overview of Worm Shafts and Gears

This report provides an overview of worm shafts and gears, which includes the type of toothing and deflection they knowledge. Other subject areas coated consist of the use of aluminum vs . bronze worm shafts, calculating worm shaft deflection and lubrication. A extensive knowing of these problems will support you to style greater gearboxes and other worm gear mechanisms. For further details, make sure you check out the relevant sites. We also hope that you will locate this write-up insightful.
worm shaft

Double throat worm gears

The pitch diameter of a worm and the pitch of its worm wheel need to be equal. The two types of worm gears have the exact same pitch diameter, but the difference lies in their axial and circular pitches. The pitch diameter is the distance in between the worm’s tooth together its axis and the pitch diameter of the more substantial gear. Worms are manufactured with still left-handed or correct-handed threads. The guide of the worm is the length a stage on the thread travels in the course of a single revolution of the worm equipment. The backlash measurement must be made in a few different areas on the gear wheel, as a massive amount of backlash implies tooth spacing.
A double-throat worm gear is developed for high-load applications. It supplies the tightest relationship between worm and equipment. It is crucial to mount a worm gear assembly appropriately. The keyway design demands several factors of contact, which block shaft rotation and support transfer torque to the equipment. After identifying the place of the keyway, a hole is drilled into the hub, which is then screwed into the equipment.
The dual-threaded design and style of worm gears enables them to endure heavy loads with no slipping or tearing out of the worm. A double-throat worm equipment gives the tightest relationship between worm and equipment, and is for that reason ideal for hoisting programs. The self-locking mother nature of the worm equipment is another gain. If the worm gears are designed well, they are exceptional for minimizing speeds, as they are self-locking.
When selecting a worm, the amount of threads that a worm has is critical. Thread starts off establish the reduction ratio of a pair, so the increased the threads, the greater the ratio. The very same is real for the worm helix angles, which can be 1, two, or a few threads prolonged. This varies between a single thread and a double-throat worm gear, and it is essential to consider the helix angle when selecting a worm.
Double-throat worm gears vary in their profile from the true gear. Double-throat worm gears are especially valuable in apps the place sound is an issue. In addition to their low sounds, worm gears can soak up shock masses. A double-throat worm equipment is also a popular option for numerous various types of programs. These gears are also typically employed for hoisting gear. Its tooth profile is different from that of the real gear.
worm shaft

Bronze or aluminum worm shafts

When choosing a worm, a couple of things need to be stored in brain. The substance of the shaft ought to be both bronze or aluminum. The worm alone is the main element, but there are also addendum gears that are available. The whole variety of enamel on each the worm and the addendum equipment must be increased than forty. The axial pitch of the worm requirements to match the round pitch of the larger equipment.
The most common content used for worm gears is bronze simply because of its fascinating mechanical qualities. Bronze is a wide term referring to a variety of copper alloys, including copper-nickel and copper-aluminum. Bronze is most generally designed by alloying copper with tin and aluminum. In some cases, this combination results in brass, which is a similar metal to bronze. The latter is considerably less pricey and suited for gentle loads.
There are numerous benefits to bronze worm gears. They are sturdy and resilient, and they offer you exceptional dress in-resistance. In contrast to steel worms, bronze worm gears are quieter than their counterparts. They also need no lubrication and are corrosion-resistant. Bronze worms are well-known with tiny, light-weight equipment, as they are effortless to preserve. You can read much more about worm gears in CZPT’s CZPT.
Even though bronze or aluminum worm shafts are the most typical, equally resources are equally suitable for a selection of programs. A bronze shaft is usually called bronze but may possibly in fact be brass. Traditionally, worm gears were created of SAE 65 gear bronze. However, more recent components have been released. SAE sixty five equipment bronze (UNS C90700) remains the favored content. For high-volume applications, the material financial savings can be appreciable.
Both varieties of worms are in essence the exact same in size and shape, but the lead on the left and proper tooth surfaces can fluctuate. This makes it possible for for exact adjustment of the backlash on a worm without having modifying the heart distance between the worm gear. The distinct measurements of worms also make them easier to manufacture and sustain. But if you want an specifically small worm for an industrial software, you must consider bronze or aluminum.

Calculation of worm shaft deflection

The centre-line length of a worm gear and the variety of worm tooth perform a critical function in the deflection of the rotor. These parameters ought to be entered into the instrument in the exact same units as the principal calculation. The picked variant is then transferred to the main calculation. The deflection of the worm equipment can be calculated from the angle at which the worm teeth shrink. The following calculation is beneficial for planning a worm gear.
Worm gears are broadly used in industrial programs because of to their higher transmittable torques and huge equipment ratios. Their tough/delicate materials mix can make them preferably suited for a broad assortment of apps. The worm shaft is typically created of circumstance-hardened metal, and the worm wheel is fabricated from a copper-tin-bronze alloy. In most instances, the wheel is the region of get in touch with with the equipment. Worm gears also have a low deflection, as high shaft deflection can impact the transmission accuracy and enhance dress in.
Another strategy for determining worm shaft deflection is to use the tooth-dependent bending stiffness of a worm gear’s toothing. By calculating the stiffness of the personal sections of a worm shaft, the stiffness of the entire worm can be identified. The approximate tooth spot is revealed in figure 5.
An additional way to compute worm shaft deflection is by using the FEM technique. The simulation tool employs an analytical product of the worm equipment shaft to establish the deflection of the worm. It is based mostly on a two-dimensional design, which is far more appropriate for simulation. Then, you require to input the worm gear’s pitch angle and the toothing to estimate the greatest deflection.
worm shaft

Lubrication of worm shafts

In get to protect the gears, worm drives need lubricants that offer excellent anti-use defense, higher oxidation resistance, and minimal friction. Whilst mineral oil lubricants are widely employed, artificial foundation oils have greater functionality attributes and reduce operating temperatures. The Arrhenius Price Rule states that chemical reactions double every single 10 levels C. Artificial lubricants are the ideal choice for these applications.
Synthetics and compounded mineral oils are the most popular lubricants for worm gears. These oils are formulated with mineral basestock and 4 to six per cent synthetic fatty acid. Surface-lively additives give compounded equipment oils fantastic lubricity and avert sliding dress in. These oils are suited for high-pace apps, including worm gears. Nonetheless, synthetic oil has the disadvantage of becoming incompatible with polycarbonate and some paints.
Artificial lubricants are high-priced, but they can enhance worm gear performance and operating daily life. Artificial lubricants typically tumble into two groups: PAO synthetic oils and EP synthetic oils. The latter has a higher viscosity index and can be employed at a selection of temperatures. Artificial lubricants often contain anti-put on additives and EP (anti-dress in).
Worm gears are regularly mounted in excess of or under the gearbox. The appropriate lubrication is essential to make certain the appropriate mounting and procedure. Quite often, insufficient lubrication can result in the device to fail faster than envisioned. Because of this, a technician could not make a link in between the deficiency of lube and the failure of the device. It is important to stick to the manufacturer’s tips and use high-top quality lubricant for your gearbox.
Worm drives decrease backlash by reducing the perform between equipment teeth. Backlash can trigger hurt if unbalanced forces are introduced. Worm drives are light-weight and sturdy due to the fact they have minimum moving parts. In addition, worm drives are low-sound and vibration. In addition, their sliding movement scrapes absent excess lubricant. The consistent sliding motion generates a high quantity of heat, which is why outstanding lubrication is critical.
Oils with a substantial film strength and outstanding adhesion are excellent for lubrication of worm gears. Some of these oils contain sulfur, which can etch a bronze gear. In order to keep away from this, it is imperative to use a lubricant that has high film toughness and stops asperities from welding. The excellent lubricant for worm gears is one that provides outstanding movie strength and does not include sulfur.

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