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.
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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

|

Customized Request

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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.

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

Are there any Specific Safety Precautions to Take When Working with Slewing Bearings?

Working with slewing bearings involves certain safety considerations to prevent accidents and ensure the well-being of personnel. Here are some specific safety precautions to take:

  • Training and Knowledge:

Ensure that personnel working with slewing bearings are properly trained and have a clear understanding of the equipment, procedures, and safety protocols.

  • Protective Equipment:

Use appropriate personal protective equipment (PPE), including gloves, safety goggles, and hearing protection, to safeguard against potential hazards.

  • Lockout/Tagout:

Follow lockout/tagout procedures when performing maintenance or repairs. Locking out equipment prevents unexpected activation and potential hazards.

  • Machine Shutdown:

Before working on machinery containing slewing bearings, ensure that the equipment is properly shut down, power sources are disconnected, and any stored energy is released.

  • Proper Tools:

Use suitable tools and equipment for maintenance and assembly to prevent accidents and ensure accurate work.

  • Weight Handling:

If handling heavy slewing bearing components, use appropriate lifting equipment and techniques to avoid strain or injury.

  • Secure Work Area:

Ensure that the work area is clean, organized, and free from obstacles. This reduces the risk of tripping hazards and improves overall safety.

  • Work with a Partner:

Whenever possible, perform tasks involving slewing bearings with a partner. Having someone nearby can provide assistance in case of emergencies.

  • Safe Access:

Ensure safe access to the work area, including the use of stable platforms or ladders, to prevent falls or slips.

  • Warning Signs:

Use proper warning signs and labels to alert others about ongoing maintenance or potential hazards related to slewing bearings.

  • Manufacturer Guidelines:

Adhere to the manufacturer’s recommendations for maintenance, lubrication, and safety practices specific to the slewing bearings being worked on.

  • Emergency Procedures:

Have clear emergency procedures in place and communicate them to all personnel. Know the location of emergency equipment and exits.

By following these safety precautions, you can minimize risks associated with working on slewing bearings and create a safer environment for maintenance personnel.

slewing bearing

What are the Materials Commonly Used in Manufacturing Slewing Bearings and Their Respective Benefits?

Slewing bearings are manufactured using a variety of materials, each offering specific benefits that suit different industrial applications. Some common materials and their advantages include:

  • Steel:

High-quality steel, such as chrome or stainless steel, is widely used due to its durability, strength, and resistance to corrosion. Steel bearings can handle heavy loads and offer excellent wear resistance, making them suitable for heavy-duty applications.

  • Forged Steel:

Forged steel is even more robust than standard steel due to the manufacturing process that aligns the grain structure. This material is suitable for applications with extreme loads, harsh environments, and high impact forces.

  • Bearing Steel:

Bearing steel, designed specifically for rolling-element bearings, provides superior hardness and wear resistance. It’s commonly used in slewing bearings to extend their service life and minimize wear.

  • Alloy Steel:

Alloy steels offer a combination of strength, toughness, and corrosion resistance. They are suitable for applications that require both load-bearing capacity and resistance to challenging conditions.

  • Cast Iron:

Cast iron is often used in smaller, low-load slewing bearings. It provides good damping properties and is cost-effective for less demanding applications.

  • Bronze:

Bronze bearings are known for their self-lubricating properties and resistance to corrosion. They are commonly used in applications where maintenance-free operation and low friction are important.

  • Plastics and Polymers:

Various plastics and polymers are employed for their lightweight, corrosion resistance, and low friction characteristics. These materials are suitable for applications that require chemical resistance and reduced noise levels.

  • Ceramics:

Ceramic materials offer excellent corrosion resistance, high temperature resistance, and electrical insulation properties. While less common, they are used in specialized applications like semiconductor manufacturing and certain medical equipment.

  • Coatings:

Special coatings like zinc, nickel, or chrome plating can be applied to enhance corrosion resistance and reduce friction. These coatings are often used in combination with other base materials to improve performance.

Choosing the appropriate material depends on factors like load, environment, operating conditions, and maintenance requirements. Engineers carefully consider these factors to ensure that the selected material aligns with the specific needs of the application.

China wholesaler 535-9006 578-3991 Small Slewing Bearing Excavator   with Good qualityChina wholesaler 535-9006 578-3991 Small Slewing Bearing Excavator   with Good quality
editor by CX 2024-05-16

Slewing bearings

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

Please get in touch with us for details.

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