摘要 |
In a sealing device of the present invention, a support ring ( 40 ) is fitted in an annular recessed part ( 23 t) formed on the inner peripheral surface of a seal lip part ( 23 ) independently of a reinforcement ring ( 30 ) to support the seal lip part ( 23 ) from the inner peripheral side, and the support ring ( 40 ) is supported axially by a reinforcement ring ( 30 ) via an interposed part ( 23 u). Thereby, when a rotating shaft (S) is inserted into the seal ring ( 20 ), a contact area between a seal part ( 23 e) and the rotating shaft (S) can be made appropriate, and when a high pressure is applied to the seal lip part ( 23 ), an increase in contact area between the seal part ( 23 e) and the rotating shaft (S) can be suppressed within an appropriate range and the seal part becomes able to follow the eccentricity of the rotating shaft (S).
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