Schaeffler Singapore

Radial Insert Ball Bearings and Housing Units

Sealing Systems

The three-piece seal concept

In contrast to seals from other bearing manufacturers that are usually only one-piece seals, we prefer a system comprising three components - outer cap, rubber seal lip, and inner cap.

The outer cap is rolled into or staked in the outer ring recess after the rubber lip has been positioned on the inner ring. This method generates a uniform seal preload that is resistant to wear and ensures a longer bearing operating life in combination with Corrotect®-coated inner rings.

Lubrication holes in the outer ring allow easy relubrication of bearings and sealing assemblies. The seals can even withstand high-pressure lubrication due to their firm seating in the outer ring.

P seal   R seal   R seal with flinger shield   T seal   L seal (labyrinth)   RSR seal

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