Unitized oil seals

Details Unitized oil seals Unitized oil seals

1996-05-20

1997-07-22

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 37, 277 38, 277 39, 277152, 277134, F16J 1534, F16J 1532

Patent

active

056497105

ABSTRACT:
A unitized oil seal (10) includes a wear sleeve element (12) and a seal element (14). The wear sleeve element (12) is configured to include an axially outwardly and radially inwardly tapered dust sealing surface (38). The seal element (14) is provided with a dust sealing lip (82) sealingly engaging the dust sealing surface (38). The dust sealing lip (82) is configured to flare out axially outwardly and radially outwardly so that the point of contact thereof with the dust sealing surface (38) is offset axially outwardly from the plane of an abutment surface (40) of the wear sleeve element. A high degree of dirt exclusion capability is achieved. The seal element (14) includes primary and auxiliary seal lips (74, 76) which are brought into sealing engagement with the wear sleeve without a conventional garter spring.

REFERENCES:
patent: 4118856 (1978-10-01), Bainard et al.
patent: 4336945 (1982-06-01), Christiansen et al.
patent: 4448426 (1984-05-01), Jackowski et al.
patent: 4531748 (1985-07-01), Jackowski
patent: 4806026 (1989-02-01), Bauer et al.
patent: 4981303 (1991-01-01), Matsushima et al.
patent: 5002289 (1991-03-01), Yasui et al.
patent: 5004248 (1991-04-01), Messenger et al.
patent: 5269536 (1993-12-01), Matsushima et al.

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