| 摘要 |
A self-compensating seal having a substantially torodially shaped seal body and a plurality of axially separated annular wipers extending radially inwardly from the inner rim of the seal body in parallel arrangement. When a shaft or rod having a diameter greater than the inside diameter of the seal opening is inserted through the central seal opening, the wipers are bent or collapsed so as to extend in an axial direction. Each of the wipers is radially inwardly biased so that wear at the sealing surfaces of the wipers caused by shaft movement is compensated for automatically.
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