| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device which inhibits slide wear from being locally accelerated.SOLUTION: A sealing device includes: a resin seal ring 110 which is provided so as to slide relative to a shaft 200; and an O ring 120 which is attached to an outer peripheral surface of the resin seal ring 110, adheres to an inner peripheral surface of a shaft hole formed in a housing 300, and is formed by a rubber elastic body. The resin seal ring 110 includes: a cylindrical first seal ring 111 which is provided at the radial inner side and has low rigidity; and a second seal ring 112 which is provided at the radial outer side and has rigidity higher than that of the first seal ring 111. An outer peripheral surface side of the first seal ring 111 fits in an annular groove 112a provided on an inner peripheral surface of the second seal ring 112. |
