| 摘要 |
The invention is directed to develop for the higher sealing capability of a rotating shaft than that of the conventional oil seal by means of making use of pushing back force caused by compressed onto both sides of internal and external surfaces of the rubber cylinder designed to rotate together with revolution of the rotating shaft fixed thereon tightly with smaller diameter of the internal cylinder while compressing onto the surface of the stationary inside wall of the opening of the casing with the specific preparation to prevent from moving rotating position such as tapered internal cylinder and lips on outside surface of the external cylinder.
|
