Mechanical shaft joint boot

Details Mechanical shaft joint boot Mechanical shaft joint boot

1988-03-02

1989-02-21

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

74 18, 403 50, F16J 304, F16J 1552

Patent

active

048059218

ABSTRACT:
A mechanical shaft joint boot integrally made up of a large-diameter ring portion and a small-diameter ring portion with a bellows portion interposed therebetween, and a straight portion connecting the bellows portion with the large-diameter ring portion. The distance 11 between the large-diameter ring portion and the small-diameter ring portion is smaller than the distance l2 between a large-diameter ring mounting portion and a small-diameter ring mounting portion of the joint, and the outside diameter of a first crest of the bellows portion is not larger than the inside diameter of the straight portion. Accordingly, when a shaft of the joint inclines to cause inclination on one side of the boot, a surface pressure being imposed on the first crest is not increased correspondingly, thereby suppressing its wear and enhancing service time of the boot.

REFERENCES:
patent: 3646778 (1972-03-01), Fisher
patent: 4249395 (1981-02-01), Krude et al.
patent: 4360209 (1982-11-01), Ukai et al.
patent: 4558869 (1985-12-01), Grove et al.
patent: 4673188 (1987-06-01), Matsuno et al.

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