Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1985-03-26
1987-05-26
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277153, 277166, F16J 1532
Patent
active
046679685
ABSTRACT:
A unitized grease seal. The seal member has a one-piece metal case having a cylindrical bore-sealing portion and a radial flange, and a molded elastomeric member bonded to the metal case to provide a portion bonded to the radial flange and an outer generally cylindrical portion bonded to the surface of the bore-sealing portion and providing a series of spaced apart inwardly extending retaining portions. The elastomeric member also has two diverging lip portions with a cavity between them, one providing a grease retention lip having small spaced-apart shallow indentations enabling passage of small amounts of grease into the cavity, the other lip portion having a polytetrafluoroethylene insert bonded thereto. A one-piece metal wear sleeve member has a shaft-engaging cylindrical portion engaged by the lips and a radially outwardly extending flange with an axially inturned portion having an outer portion spaced radially inwardly from the outer generally cylindrical portion of the elastomeric member but extending radially outwardly beyond the radially inner extremities of the retaining portions. During assembly, the wear sleeve flange's inturned portion is snapped into the space between the retaining portions and the case's radial flange.
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Brooks David R.
Nash Stephen E.
Pichler Gerald P.
Federal-Mogul Corporation
Hess Robert F.
Shurupoff Lawrence J.
Ward Robert S.
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