811 / 812 Series Cylindrical Roller Thrust Bearings

Overview of 811 and 812 Series Cylindrical Roller Thrust Bearings

The 811 series and 812 series cylindrical roller thrust bearings are specifically designed to support extremely high axial loads, including shock and peak loads, in a single direction. However, like all thrust bearings, they are not intended to support radial forces.

Both series feature a compact, robust structure with cage-guided cylindrical rollers that ensure uniform load distribution and reduced friction, making them highly efficient in high-load axial applications.

Key Features

High Axial Load Capacity: Supports substantial axial forces in one direction, ideal for heavy-duty applications.
Compact Design: Optimized for installations where axial space is restricted.
Shock Load Resistance: Engineered to absorb peak loads without performance degradation.
Efficient Operation: Reduced friction and precise roller alignment enhance bearing life and reliability.

811 Series vs 812 Series

The difference between the two series lies in the load-carrying capacity and design dimensions:

811 Series: Suitable for medium to high axial loads, offers a more compact cross-section.
812 Series: Designed for higher axial loads than 811, with a slightly larger profile for greater stiffness.

Typical Applications

These bearings are widely used in:

Machine tool spindles
Hydraulic cylinders
Vertical pumps and screw compressors
Heavy-duty industrial gearboxes

Interchangeability

Both 811 and 812 series cylindrical roller thrust bearings are fully interchangeable with equivalent models from premium manufacturers like SKF, ensuring hassle-free replacements and upgrades.

Conclusion

For applications demanding high axial load capacity in compact arrangements, the 811 and 812 series cylindrical roller thrust bearings deliver reliable, long-lasting performance. Their robust design and load resilience make them ideal for high-performance industrial systems.