Tower Crane Slewing Bearing

Tower Crane Slewing Bearing

. Product Description: The tower crane slewing bearing is the core rotating component of the tower crane, carrying the entire load of the upper structure, including the boom and counterarm, and enabling 360-degree rotation of the tower crane's upper structure.
2. Product Structures: Single-row four-point contact ball type, double-row different-diameter ball type, triple-row roller type. Customization is available for special requirements.
3. Size Range: Inner Diameter: 800mm-4000mm, Outer Diameter: 1000mm-4500mm, Height: 80mm-300mm, Number of Bolt Holes: 48-120. Customization is available for special requirements.
4. Materials: Base material: 42CrMo, 50Mn special alloy steel
Rolling elements: GCr15SiMn high-purity bearing steel
Seal material: Imported nitrile rubber or fluororubber
5. Applications:
Topless tower cranes, luffing jib tower cranes, internal climbing tower cranes, high-speed tower cranes, and special-purpose tower cranes: wind turbine installation and bridge construction
Product Description

Tower Crane Slewing Bearing - Premium Rotating Solutions for Heavy-Duty Construction

When you need reliable rotating components for your tower crane operations, our Tower Crane Slewing Bearing delivers exceptional performance and durability. As the core rotating component that carries the entire load of your crane's upper structure, this bearing enables smooth 360-degree rotation while supporting the boom and counterarm. Our precision-engineered bearings ensure your construction projects run smoothly with minimal downtime and maximum efficiency.

Factory environment  production equipment

Why Choose Our Slewing Bearings for Your Tower Crane?

Your construction projects demand components that can withstand extreme loads and harsh conditions. Our bearings are manufactured using premium materials and advanced engineering techniques. We utilize 42CrMo and 50Mn special alloy steel for the base material, ensuring exceptional strength and longevity.

The rolling elements are crafted from GCr15SiMn high-purity bearing steel. This provides superior wear resistance and smooth operation. Our imported nitrile rubber or fluororubber seals protect against contamination and extend service life.

Comprehensive Product Specifications

Multiple Structure Options

We offer three main structural designs to meet your specific requirements:

  • Single-row four-point contact ball type
  • Double-row different-diameter ball type
  • Triple-row roller type

Flexible Size Range

Our standard size range accommodates various crane configurations:

  • Inner Diameter: 800mm-4000mm
  • Outer Diameter: 1000mm-4500mm
  • Height: 80mm-300mm
  • Bolt Holes: 48-120

Custom dimensions are available when your project requires specialized specifications.

Superior Engineering and Quality

Our Tower Crane Slewing Bearing features four-point contact design. This allows simultaneous transmission of axial force, radial force, and tilting moment. The result is smooth, stable rotational movement under heavy loads.

We maintain strict quality control throughout manufacturing. Our ISO9001-certified facility uses advanced CNC equipment and rigorous testing methods. Every bearing undergoes comprehensive inspection before shipment.

ISO

Wide Application Range

Our bearings serve various tower crane types:

  • Topless tower cranes
  • Luffing jib tower cranes
  • Internal climbing tower cranes
  • High-speed tower cranes
  • Special-purpose cranes for wind turbine installation
  • Bridge construction equipment

Professional Manufacturing Capabilities

With over 30 years of industry experience, our team understands your challenges. We operate advanced production equipment including CNC vertical lathes, quenching machines, and machining centers. Our precision manufacturing covers four accuracy grades: P0, P6, P5, and P4.

Our global reach extends to over 50 countries. We've earned trust from customers in the United States, Germany, United Kingdom, and many other markets.

Packaging and delivery Packaging and delivery

Custom Solutions for Your Needs

Every project is unique. That's why we offer comprehensive customization services. Our engineering team provides technical consultation, product design, and manufacturing support. We also handle installation guidance and can create solutions from your existing product specifications.

Whether you need standard dimensions or specialized configurations, we adapt our product to your exact requirements.

FAQ

Q: What maintenance is required for the products?

A: Regular lubrication and inspection are essential. Check for proper grease levels, seal integrity, and any unusual noise or vibration. We recommend following manufacturer guidelines for maintenance intervals.

Q: How do I select the right bearing size for my tower crane?

A: Consider your crane's load capacity, boom length, and operating conditions. Our technical team can help you choose the optimal specifications based on your specific requirements.

Q: What is the typical lifespan of these bearings?

A: With proper maintenance and operation within design parameters, our bearings typically provide many years of reliable service. Actual lifespan depends on load conditions and maintenance practices.

Q: Do you provide installation support?

A: Yes, we offer installation guidance and technical support to ensure proper fitting and optimal performance of your bearing system.

Q: Can you manufacture bearings to custom specifications?

A: Absolutely. We specialize in custom solutions and can manufacture bearings to your exact dimensional and performance requirements.

 Exhibition Photos Customer Visit​​​​​​​

Contact Us

Ready to enhance your Tower Crane Slewing Bearing performance? Contact our technical experts at mia@hgb-bearing.com for personalized consultation and quotations tailored to your project needs.

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