SKF NBR Seal, 41.275mm ID, 53.9mm OD, 6.35mm

The SKF Radial shaft seals are used between rotating and stationary machine components, or between components in relative motion. Seals are designed with a metal case, an SKF WAVE lip made of elastomer with higher pumping rate to reduce heat generation, and a garter spring to optimize sealing against the shaft. Most of the seals feature the SKF Bore Tite coating on the outside diameter that helps fill small imperfections in the housing bore.

For oil or grease
With garter spring
WAVE lip creates higher pumping rate
WAVE lip has less friction between shaft and lip
WAVE lip has a lower temperature at the contact point