| 摘要 |
<p>A seal assembly primarily used for retaining oil or other lubricants in an oil bath which lubricates a sealed bearing assembly. In one successful form, the invention is embodied in a unitized seal assembly having an elastomeric seal element and associated casing which rotate with respect to each other. The elastomeric portion includes a primary or wet sealing lip, and an auxiliary or dry sealing lip which excludes dirt and other foreign matter from the primary sealing lip area. An axially extending collar forming a part of the seal element extends at least into an annular opening defined by an imperforate outer wall of the casing.</p> |
