Eight Point Contact Ball Slewing Ring Bearing

What Are Eight Point Contact Ball Slewing Bearings?

Eight point contact ball slewing ring bearings use a double-row ball configuration, forming eight contact points between balls and raceways. This design allows the bearing to handle complex combined loads — axial, radial, and tilting moments — while ensuring smooth and precise rotation under heavy-duty conditions.

Product Configurations

We offer versatile structural options to suit a wide range of system designs:

• Internal Gear: Ideal for compact enclosed gear drives.
• External Gear: Enables efficient torque transfer and easy integration.
• Without Gear: Preferred in friction-drive systems or where custom gearing is used.

Compatible With Leading Global Brands

All models are designed to be dimensionally and functionally interchangeable with the following brands, helping reduce lead times and simplify sourcing:

• KAYDON
• ROTEK
• ROTHEERDE

Applications

Engineered for high-performance systems requiring precise motion control and durability, these bearings are widely used in:

• Rotary indexing tables
• Robotic arms and manipulators
• Military and aerospace radar systems
• Wind turbines and offshore machinery
• Medical imaging and diagnostic equipment

Key Advantages

• Supports axial, radial, and moment loads with a compact footprint
• Greater rigidity and lifespan due to double-row construction
• High rotational accuracy and stability under dynamic loads
• Available in multiple gear configurations for flexible integration
• Engineered with precision and tested under stringent quality standards

Selection Guidelines

To maximize performance and longevity, consider the following when selecting a slewing bearing:

• Expected load types and directions (axial, radial, tilting moment)
• Mounting space constraints and gear type compatibility
• Environmental conditions such as humidity, dust, or temperature
• Whether interchangeability with existing components is required

Why Choose Our Slewing Ring Bearings?

Our eight point contact slewing bearings are trusted by OEMs and engineers worldwide for their:

• Superior load-handling capabilities
• Robust construction for long-term durability
• Fast delivery and global brand compatibility
• Responsive technical support and engineering assistance

Whether you are designing new machinery or replacing existing components, our slewing bearings deliver performance you can count on.