K811 Series and K812 Series

K811 and K812 Series Cylindrical Roller and Cage Thrust Assemblies

The K811 and K812 series represent advanced cylindrical roller thrust bearing assemblies designed for applications involving extremely high axial loads. These assemblies consist of a cage and cylindrical rollers, which work together to ensure efficient load transfer with reduced friction and heat generation.

Product Overview

Both series are constructed to accommodate heavy axial forces in a single direction. However, like other thrust bearings, they are not intended to support radial loads. The cage-guided roller arrangement ensures optimal roller alignment, resulting in smoother operation and increased operational lifespan.

Key Features

• High Axial Load Capacity: Designed for heavy axial forces, including peak and shock loads.
• Space-Efficient Design: Compact structure ideal for restricted axial spaces.
• Low Friction: Optimized cage and roller contact reduces internal resistance and heat generation.
• Enhanced Durability: Precision engineering and surface finishes improve reliability under demanding conditions.

K811 vs. K812 Series

The primary distinction between the K811 and K812 series lies in load ratings and axial cross-sectional dimensions:

• K811 Series: Suitable for moderate to high axial loads with a compact axial height.
• K812 Series: Engineered for higher axial load capacities and provides greater stiffness compared to K811.

Common Applications

• Hydraulic cylinders
• Gearboxes
• Vertical screw conveyors
• Heavy-duty machine tools

Interchangeability

Both the K811 and K812 series are fully interchangeable with equivalent models from leading manufacturers, including SKF, ensuring seamless integration or replacement.

Conclusion

For high-load axial applications in tight axial spaces, the K811 and K812 series cylindrical roller thrust assemblies provide an ideal combination of performance, durability, and compactness. Their precision-engineered design ensures reliable operation under extreme conditions.