Abstract: An end bearing for one-way clutch which is preferred for use in an automatic transmission is disclosed. The end bearing comprises a body formed of a steel plate, a hard coating applied to the surface of the body, and a soft coating applied to the surface of the hard coating. The steel plate of the body assures a sufficient rigidity. Regions of the end bearing which provide sliding surfaces are covered by a soft coating and a hard coating, which improves the anti-seizing resistance and the durability of the end bearing.

Abstract: A lip seal device for use with an automobile water pump having a simple structure and which can be manufactured with a compact size and at a low cost. The lip seal device includes a housing, a rotary shaft rotatably supported in the housing, a case through which the rotary shaft passes, a sleeve fixed to the rotary shaft, and a sealing member formed of two sheets of lips, the outer end portions of which are attained to the case and the inner end portions of which are in sliding contact with the outside circumferential surface of the sleeve, whereby the generation of abnormal noise in the automobile engine is effectively controlled.

Abstract: A mechanical seal, such as may advantageously be used for an automotive water pump or the like, in which the amount of frictional torque is significantly reduced. The seal includes a follower ring through which a rotary shaft rotatably passes and a seat ring rotated by the shaft. Recesses are formed in the abutting surface of at least one of the two rings, each recess being defined by a forward edge and a rear edge and opening only to the inner circumferential surface of the rings. The forward edge of each recess is inclined from the inner circumferential surface to the rear side in the direction of rotation of the follower ring relative to the seat ring, and the rear edge extends from the outer end of the forward edge along a radial line extending through substantially the center of the shaft.