| 摘要 |
To improve durability of a seal lip of a sealing device attached to a shaft hole in a housing so as to slidably contact with a shaft, the sealing device has a sealing device body integrally having a tubular fixation portion fixed to the inner periphery of the shaft hole and a seal lip in slidable contact with the shaft and an oil supply member integrally having a tubular fitting portion fitted to the inner peripheral side of the fixation portion and a flange-like oil supply portion provided so as to extend radially inward from the fitting portion, the oil supply portion is arranged at a sealing fluid side from the end of the seal lip, radially inwardly extending protrusions are provided at an inner peripheral edge of the oil supply portion, and oil transmission grooves are provided on the protrusions so as to extend toward their ends. |
