| 主权项 |
1. A sealing device sealing an annular gap between a shaft and a housing, comprising:
a reinforcing ring having an inward flange portion; and a seal main body made of a rubber-like elastic body, provided integrally with the reinforcing ring, and having a main lip that extends from a vicinity of a tip of the inward flange portion to a sealed area side, and slidably comes into contact with an outer peripheral surface of the shaft, and a dust lip that extends from the vicinity of the tip of the inward flange portion to a side opposite to the sealed area, and slidably comes into contact with the outer peripheral surface of the shaft, wherein a bumper portion made of a rubber-like elastic body and reducing an impact that the dust lip receives from the shaft when the shaft is inserted into the sealing device is provided on the side of the dust lip opposite to the sealed area, and an inner diameter of a tip of the bumper portion on an inner peripheral side is set to be larger than an outer diameter of a part of the shaft on which the main lip and the dust lip slide and to be smaller than an inner diameter of a part having the largest inner diameter in a portion connecting the main lip and the dust lip. |
