The Torrington Company

Salvatore Acampora

Daniel R McLarty

The antifriction bearing has an annular seal with a metal ring with resilient springs which securely lock the seal into the outer ring annular groove. A polymer ring on the metal ring of the seal is in sealing engagement with the inside surface of the bearing outer ring.

Bearing and bearing seal

A pair of axially separated, radially extending annular shoulders form an annular groove on the inside diameter of an outer ring of an antifriction bearing. An adjacent axially extending eccentric surface ensures that of the outer annular shoulder continuously increases around a first arcuate portion and continuously decreases around a second arcuate portion. An annular seal between an inner ring and the outer ring has concentric circumferentially separated protrusions. An annular portion of the annular seal extends into the outer ring annular groove such that when the annular seal rotated, at least one of the protrusions abuts against the eccentric surface to lock the seal against rotation.

Antifriction bearing with a seal locked against rotation

An annular sealing groove is provided at an axial end of one of an outer or inner bearing ring. The seal element comprises an annular ring of an elastomeric material with a plurality of circumferentially periodic radially extending projections integrally formed in an outer periphery or an inner periphery thereof. The projections are configured to provide an interference fit in the radial direction with respect to a bottom wall and outer side wall of the sealing groove to effect a seal. Preferably, the radial interference fit of the seal element biases the seal element axially against an inner side wall of the sealing groove.

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Bristol, CT, United States of America

Salvatore Acampora