Product Description

1. Company introduction 

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

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

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

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

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

3. Our excavator part numbers as below:

Kobelco Slewing Ring Replacement 
Excavator model number Part number Excavator model number Part number
SK60-3   2425U232F1 SK210LC-6  Yn40F00004f1 
SK75-8   YT40F00004F1 SK210LC-8     YN40F00026F1
SK75 UR-3  2425U261F1 SK220LC  III/IV   24100N7441F1
SK130LC IV  LP40FU0001F1 SK230-6   LQ40F00004F1
SK135SR  YW40F00001F1 SK235      YN40F57104P1
SK-140  YY40F00009F1 SK250-6E  LQ40F00005F1
SK140SR  YY40F00009F1 SK250-8   LQ40F00014F1
SK200  24100N7440F1 SK250LC-6E  LQ40F00004f1
K907LC-2   24100N3978F SK250NLC-6  24100N7441F1
SK907-2   24100N3978F2 SK260-8     LQ40F000014F1
SK200  YN40FU0001F1 SK260LC-8   LQ40F00014F
SK200-3   24100N440F1 SK300-III   2425U262F1
SK200-6   YN40F00008F1 SK330   LC40F00019F1
SK200-6   YN40F0571FI SK330-6E   LC40F00009F1
SK200-6 super   YN40F00004F2 SK330LC V1    LC40FU0001F1
SK200-8 YN40F00026F1 SK330LC-6E    LC40F00009F1
SK200-8   YN40F00026F2 SK330-6E  LC40F00012F
SK200-10   Yn40F00042f2 SK350    LC40F00018F1
SK-210  YN40F00033F2 SK350ME  FG4E9648E-J6
SK210LC    YN40F00019F2 SK480LC-6  LS40F00003F1

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
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Standard or Nonstandard: Standard
Feature: Short Delivery Time
Sealing Gland: We Use Seal Rings
Rolling-Element Number: Single Row, Three Row for Huge Slewing Bearing
Roller Type: Four Point Contact
Material: Alloy Steel
Samples:
US$ 650/Set
1 Set(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

slewing bearing

Are there any Specific Design Considerations when Using Slewing Bearings in Heavy-Duty Applications?

When utilizing slewing bearings in heavy-duty applications, several specific design considerations are essential to ensure reliable performance, safety, and longevity. Here are key factors to keep in mind:

  • Bearing Selection:

Choose slewing bearings with higher load-carrying capacities that are specifically designed for heavy loads. Opt for designs that distribute loads evenly and minimize stress concentrations.

  • Load Distribution:

Heavy-duty applications often involve uneven load distribution due to various operational conditions. Bearing designs should account for these variations to prevent premature wear and failure.

  • Material Selection:

Select materials that can withstand heavy loads, shock loads, and potential impacts without deformation or fatigue. High-strength steels and advanced materials with excellent mechanical properties are often preferred.

  • Rolling Element Size and Quantity:

Increase the size and quantity of rolling elements to distribute heavy loads more effectively. Larger and more rolling elements can handle higher forces while reducing stress on individual elements.

  • Lubrication and Sealing:

Heavy-duty applications generate more heat and friction. Use appropriate lubrication methods and consider advanced sealing solutions to ensure proper lubricant retention and prevent contamination.

  • Mounting and Alignment:

Ensure accurate mounting and alignment to prevent unnecessary stress on the bearing components. Misalignment can lead to premature wear and reduced bearing life.

  • Structural Integration:

Integrate the slewing bearing into the overall machine design, considering factors like structural support, load paths, and interfaces with other components.

  • Dynamic Loading:

Heavy-duty applications often involve dynamic loading scenarios. Consider factors such as impact loads, acceleration, and deceleration when designing the bearing and its supports.

  • Heat Dissipation:

Heavy loads and continuous operation can generate heat. Design the bearing housing and cooling systems to dissipate heat effectively and prevent overheating.

  • Maintenance Access:

Design the bearing arrangement to allow for convenient maintenance and inspections. Access to lubrication points, seals, and other components should be easy to facilitate regular upkeep.

  • Load Surges and Shock Absorption:

Heavy-duty applications might experience sudden load surges or impacts. Incorporate shock-absorbing mechanisms or dampers to protect the bearing from excessive forces.

In summary, heavy-duty applications demand careful consideration of bearing selection, materials, load distribution, lubrication, and other design elements to ensure the reliable and durable performance of slewing bearings under substantial loads.

slewing bearing

What are the Common Maintenance Practices for Ensuring the Durability of Slewing Bearings?

Maintaining slewing bearings is crucial for ensuring their longevity and optimal performance. Here are some common maintenance practices to enhance the durability of slewing bearings:

  • Regular Inspection:

Perform routine visual inspections to check for signs of wear, corrosion, and damage. Inspect seals, lubrication levels, and any unusual noises or vibrations during operation.

  • Lubrication:

Follow the manufacturer’s guidelines for lubrication intervals and use appropriate lubricants. Lubricate the bearings to ensure smooth operation, reduce friction, and prevent wear.

  • Seal Maintenance:

Inspect and maintain seals to prevent the ingress of contaminants such as dust, dirt, and moisture. Damaged or worn seals should be replaced promptly.

  • Cleaning:

Regularly clean the bearing and its surrounding area to remove dirt, debris, and contaminants that could affect performance. Keep the bearing environment as clean as possible.

  • Environmental Protection:

If the bearings are exposed to harsh conditions, consider using protective covers or shields to prevent direct exposure to elements like water, chemicals, and abrasive materials.

  • Alignment and Mounting:

Ensure proper alignment during installation to prevent unnecessary stress on the bearing. Accurate mounting reduces the risk of misalignment-related failures.

  • Torque Monitoring:

If the bearing has gears, regularly monitor and maintain the torque levels to prevent overloading and premature wear.

  • Load Distribution:

Operate the machinery within the specified load limits to avoid overloading the bearing, which can lead to fatigue and failure.

  • Replacement of Worn Components:

If any components, such as seals or lubrication fittings, show signs of wear, replace them promptly to maintain the integrity of the bearing system.

  • Documentation:

Maintain records of maintenance activities, including lubrication schedules, inspections, and any repairs or replacements. This documentation helps track the bearing’s history and aids in decision-making.

  • Training:

Ensure that maintenance personnel are adequately trained to carry out proper inspection, lubrication, and maintenance procedures.

By implementing these maintenance practices, you can maximize the service life of slewing bearings, minimize downtime, and maintain consistent machinery performance.

slewing bearing

What Factors Should Be Considered When Selecting a Slewing Bearing for a Specific Application?

Selecting the right slewing bearing for a specific application requires careful consideration of various factors to ensure optimal performance and longevity. Some crucial factors to take into account include:

  • Load Requirements: Determine the axial, radial, and moment loads that the slewing bearing will need to support. Choose a bearing with an appropriate load-carrying capacity for the application.
  • Space Limitations: Consider the available installation space, both in terms of diameter and height. Choose a slewing bearing that fits within the allocated space without compromising functionality.
  • Rotational Speed: Determine the required rotational speed of the bearing. Higher rotational speeds may require bearings with advanced designs and materials to manage heat and wear.
  • Environmental Conditions: Assess the operating environment for factors like temperature, humidity, dust, and corrosive substances. Select a bearing with suitable seals and coatings to withstand these conditions.
  • Accuracy and Precision: For applications requiring precise positioning, such as robotics or industrial machinery, choose a bearing that offers the necessary level of accuracy in rotation.
  • Mounting and Assembly: Consider the ease of installation and any special mounting requirements. Some bearings come with integrated mounting features, simplifying the assembly process.
  • Lubrication and Maintenance: Evaluate the lubrication needs of the bearing. Some bearings require periodic maintenance, while others are designed for long-term lubrication.
  • Expected Lifespan: Determine the desired lifespan of the bearing in relation to the application’s operational requirements. High-quality bearings with robust construction may offer longer service life.
  • Cost-Benefit Analysis: Balance the initial investment with long-term benefits. Consider factors like maintenance costs, downtime, and overall equipment performance.
  • Industry Standards: Ensure that the selected slewing bearing complies with relevant industry standards and regulations for safety and quality.

Ultimately, the selection process involves matching the unique requirements of the application with the capabilities of the slewing bearing. Consulting with bearing manufacturers and experts can provide valuable insights to make an informed decision.

China manufacturer Excavator Slewing Ring Bearing Turntable Bearing Sk03   bearing driver kitChina manufacturer Excavator Slewing Ring Bearing Turntable Bearing Sk03   bearing driver kit
editor by CX 2024-04-16

Slewing bearings

As one of the slewing bearings manufacturers, suppliers, and exporters of mechanical products, We offer slewing bearings and many other products.

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