SKF CRWA1 R Radial Shaft Seal

The SKF CRWA1 R 280x320x20 radial shaft seal is a metal‑cased oil/grease seal engineered for reliable sealing on large industrial shafts. It features an SKF Wave lip made of elastomer with a higher pumping rate to reduce heat generation, a garter spring to maintain consistent shaft contact, and a dust lip to help exclude contamination. The R designation indicates nitrile rubber (NBR) lip material, and the seal is suitable for speeds up to 3,300 rpm in general‑industrial oil or grease applications. With a bore of 280 mm, an outer diameter of 320 mm, and a width of 20 mm, this two‑lip design is intended for shaft sealing between rotating and stationary components in machinery that requires robust, maintenance‑friendly performance.