Browse Prior Art Database

ANTI-ROTATIONAL BALL BEARING RETAINER

IP.com Disclosure Number: IPCOM000026077D
Original Publication Date: 1990-Feb-28
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 57K

Publishing Venue

Xerox Disclosure Journal

Abstract

The problem of mounting the outer races of ball bearings so that they will not work lose, rotate, and wear against their mounting holes, is known in the art, e.g., Xerox Corporation U.S. Patent 4,804,277 by Steve Counoupas, and references therein. Specifically, in Fig 2 this patent shows a two offset screw and metal retainer washer holddown of a bearing outer race to prevent its rotation.

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XEROX DISCLOSURE JOURNAL

ANTI-ROTATIONAL BALL Proposed Classification BEARING RETAINER U.S. C1.355/256 Brian J. Phillips Int. C1. G03g 15/10

The problem of mounting the outer races of ball bearings so that they will not work lose, rotate, and wear against their mounting holes, is known in the art,
e.g., Xerox Corporation U.S. Patent 4,804,277 by Steve Counoupas, and references therein. Specifically, in Fig 2 this patent shows a two offset screw and metal retainer washer holddown of a bearing outer race to prevent its rotation.

The present system uses a known Neoprene rubber washer (grommet) held under the head of a single conventional screw. This screw is screwed into a conventional tapped screw hole at a position slightly offset from the outer ball bearing race mounting hole, preferably far enough away so that the screw head will not interfere with mounting the shouldered ball bearing in its mounting hole. This screw is then tightened (torqued down), which compresses the rubber washer, so that the rubber washer laterally expands out beyond the screw head radius, engaging the side of, and partially overlying, the bearing outer race, thereby preventing its rotation. The screw can be of the integrally formed washer head type (rolling screw).

XEROX DISCLOSURE JOURNAL - Vol. 15, No. 1 January/February 1990 51

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52 XEROX DISCLOSURE JOURNAL - Vol. 15, No. 1 January/February 1990

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