Unitized radial and facial seal

Details Unitized radial and facial seal Unitized radial and facial seal

1995-01-13

1997-08-12

Cummings, Scott W.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277152, 277153, F16J 1532

Patent

active

056557817

ABSTRACT:
A unitized radial and facial seal assembly intended for use between radially inner and outer relatively rotationally and axially movable members includes a facial seal which is disposed between axially spaced, radially extending flanges of a counterface and a retainer to prevent entry of external contaminants, a radial seal mounted on a casing and fixed against relative rotational and axial movement, and a wiper seal on the counterface which is disposed in sealing engagement with the radially inner member. One or more bearing members are disposed on the counterface for conjoint rotation with the radially inner member and cooperate with the wiper seal in maintaining a fixed axial relationship between the counterface and retainer. The relationship is such that the seals that rotate relative to their sealing surfaces are not exposed to axial reciprocation and the seals that undergo axial reciprocation are not exposed to relative rotation with respect to a sealing surface.

REFERENCES:
patent: 4428586 (1984-01-01), Romero
patent: 5015001 (1991-05-01), Jay
patent: 5018750 (1991-05-01), Sparks et al.
patent: 5096207 (1992-03-01), Seeh et al.
patent: 5183269 (1993-02-01), Black et al.
patent: 5348312 (1994-09-01), Johnston
patent: 5421592 (1995-06-01), Petrak

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