Unitized bearing with free molded seals

Details Unitized bearing with free molded seals Unitized bearing with free molded seals

1986-11-03

1987-11-24

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384607, 384614, 384615, 384617, F16C 3378

Patent

active

047084979

ABSTRACT:
A thrust bearing for use in a steerable McPherson strut suspension uses free molded seals, but is sealed at all times regardless of the axial forces acting on the bearing, and is maintained as a unitized structure as well. Retention flanges on the cage interfit with conical sealing surfaces of the races to limit axial race separation and unitize the bearing. Free molded seals with conical walls matching the respective sealing surfaces are maintained in a radial tension against the sealing surfaces by virtue of being supported on the cage and on the sealing surfaces with a stretch fit. The sealing walls are prevented from disengaging the sealing surfaces by the controlled race axial separation, and the tension of the sealing engagement actually increases because of the orientation of the sealing walls and sealing surfaces.

REFERENCES:
patent: 3414341 (1968-12-01), Murphy
patent: 4313644 (1982-02-01), Dagiel
patent: 4368932 (1983-01-01), Wolzenburg
patent: 4398777 (1983-08-01), Murphy

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