Four-Point Contact Ball Slewing Bearings
2. Product Structures: Internally toothed, externally toothed, and gearless. Customization is available for special requirements.
3. Size Range: Inner Diameter: 100mm-4000mm, Outer Diameter: 150mm-4500mm, Height: 25mm-200mm. Custom sizes available, with a maximum outer diameter of 10 meters.
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:
Construction Machinery, Wind Power Equipment, Port Machinery, Military Equipment, Metallurgical Equipment, New Energy, Specialty Equipment
Four-Point Contact Ball Slewing Bearings - Professional Solutions by Heng Guan Bearing
When you need reliable rotational support for heavy-duty applications, Four-Point Contact Ball Slewing Bearings deliver exceptional performance. These specialized bearings feature a unique Gothic arched raceway design that creates four distinct contact points between each steel ball and the raceway. This innovative design allows you to support combined loads including axial, radial, and overturning moments simultaneously. At Luoyang Heng Guan Bearing Technology Co.,Ltd, we manufacture these precision bearings to meet your most demanding industrial requirements with over 30 years of proven expertise.
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Why Choose Our Four-Point Contact Ball Slewing Bearings?
Our bearings stand out because of their exceptional versatility. You get superior load distribution across four contact points, which significantly increases the bearing's load capacity compared to traditional designs. The separable construction means you can mount the outer ring with ball and cage assembly independently from the inner ring halves. This feature simplifies your installation and maintenance procedures.
We manufacture these bearings with high-quality 42CrMo and 50Mn special alloy steel for the base material. The rolling elements use GCr15SiMn high-purity bearing steel, ensuring long service life. Our imported nitrile rubber or fluororubber seals protect against contamination while maintaining smooth operation.
Technical Specifications & Customization Options
Your application requirements determine our manufacturing approach. We offer three main structural configurations:
- Internally toothed - Perfect for applications requiring internal gear engagement
- Externally toothed - Ideal for external drive systems
- Gearless - Suitable for direct drive applications
Our standard size range covers inner diameters from 100mm to 4000mm and outer diameters from 150mm to 4500mm. Heights range from 25mm to 200mm. However, we understand your projects may have unique requirements. That's why we provide custom sizing up to 10 meters in outer diameter.
All our Four-Point Contact Ball Slewing Bearings meet precision grades P0, P6, P5, and P4, ensuring you get the accuracy level your application demands.
Applications Across Industries
These versatile bearings excel in numerous demanding environments. Construction machinery benefits from their ability to handle complex load combinations. Wind power equipment relies on their durability in challenging weather conditions. Port machinery operators appreciate their resistance to harsh marine environments.
Military equipment manufacturers choose our bearings for their reliability under extreme conditions. Metallurgical equipment benefits from their high-temperature performance. New energy applications leverage their efficiency and long service life.

Quality Assurance & Global Standards
Every bearing undergoes rigorous testing using coordinate measuring machines, vibration testers, and life testing equipment. Our ISO9001 certification and RoHS compliance ensure you receive products meeting international standards including DIN, ISO, and GB specifications.
We maintain full traceability from raw materials through finished products. This comprehensive quality control gives you confidence in every bearing's performance and reliability.

Professional Support & Fast Delivery
Our team of over 50 engineers provides technical consultation, product design, manufacturing guidance, and installation support. We maintain ample inventory of standard products for quick delivery. Custom orders receive the same attention to quality and timeline commitments.
Whether you need products for standard applications or require specialized modifications, we're ready to support your project from concept to completion.
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FAQ
Q: What makes product different from standard slewing bearings?
A: The Gothic arched raceway design creates four contact points per ball instead of two, providing superior load distribution and increased capacity for combined axial, radial, and moment loads.
Q: Can you customize bearings for specific applications?
A: Yes, we provide comprehensive customization including special sizes up to 10 meters diameter, different tooth configurations, and modifications for unique operating conditions.
Q: What precision grades are available?
A: We manufacture bearings in four precision grades: P0, P6, P5, and P4 to meet various application requirements.
Q: How do I determine the right bearing size for my application?
A: Contact our engineering team with your load requirements, operating conditions, and space constraints. We'll recommend the optimal solution.
Q: What is your typical delivery time?
A: Standard products ship quickly from inventory. Custom bearings typically require 4-8 weeks depending on specifications and quantity.
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Contact Us
Do you have more questions about Four-Point Contact Ball Slewing Bearings? Email mia@hgb-bearing.com for samples or technical details!
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