Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1993-02-08
1995-06-06
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 40, 277 47, 277 65, 277178, F16J 1534
Patent
active
054215927
ABSTRACT:
A unitized radial and facial seal assembly intended for use between radially inner and outer relatively rotationally and axially movable members includes a counterface for securement to the radially inner member and a bearing fixed to the counterface for conjoint movement therewith. An axially compressible facial seal is captured between axially spaced, radially outwardly extending flanges of the counterface and the retainer to prevent entry of external contaminants. A radial seal is mounted on a casing fixed against relative rotational and axial movement while sealingly engaging the radially inner member. In an installed condition, the radial seal, casing, retainer, and facial seal are all fixed against relative rotational and axial movement to the radially outer member. The counterface and bearing are secured for conjoint rotation with the radially inner member. The seal components form a secondary labyrinth seal to prevent any contaminants which do pass by the facial seal from reaching the radial seal. In a first embodiment, the casing is press-fit within the retainer, which, in turn, is press-fit within a counterbore of the radially outer member during installation. In a second embodiment, the casing includes an overfolded skirt portion surrounding the retainer and press-fit into the counterbore during installation.
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Beres John L.
Cuchlinski Jr. William A.
Reilly John E.
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