| 摘要 |
A resin lip type seal having a first inner seal lip, a first outer seal lip, and a second inner seal lip that are formed integrally with each other. The first inner seal lip and the first outer seal lip have a recess opened facing the first sealed fluid side and are in slidable contact with both an operation member and a fixed member that are formed on the inner and outer peripheries of the recess. The second inner seal lip is formed on the second sealed fluid side. The second seal lip is not forcibly bent, and in addition, a reduction in an interference margin due to creep can be compensated. To achieve this construction, the second inner seal lip (14) is formed as a plate-like lip that extends obliquely in the direction radially inward toward the second sealed fluid side (B) until an inner tip (15) is in slidable contact with a shaft (2). An outer tip (16) is made to be in contact with a tapered surface (52) formed on a housing (3) or on an installation member (5) fitted in the housing (3), allowing contact surface pressure directed radially inward to act on the inner peripheral tip (15). |
