Hub unit bearing apparatus with improved pre-loading arrangement

Details Hub unit bearing apparatus with improved pre-loading arrangement Hub unit bearing apparatus with improved pre-loading arrangement

1991-12-03

1993-05-11

Stodola, Daniel P.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Housing

With rolling body supporting shaft in housing

3011051, 384506, 384544, F16C 1300, F16C 4304

Patent

active

052097013

ABSTRACT:
A hub unit bearing apparatus for a vehicle, adapted to rotatably support a constant velocity joint and a wheel on a vehicle body and to connect them to each other, comprises an outer race attached to a vehicle body, a shaft extending from a constant velocity joint and having a first reduced diameter portion at its free end, a cylindrical hub fitted on the first reduced diameter portion and having one end which is near the constant velocity joint and on which a second reduced diameter portion is formed, an inner race fitted on the second reduced diameter portion and cooperating with the outer race via rolling members to construct a bearing, a first nut threaded on the second reduced diameter portion so as to protrude from an end face of the second reduced diameter portion axially and urging the inner race against a body portion of the hub, and a second nut threaded on the second reduced diameter portion and urging the hub, inner race and first nut against the constant velocity joint. A predetermined pre-load is applied to the bearing by the first nut, and the first nut is prevented from loosing by the second nut.

REFERENCES:
patent: 4094376 (1978-07-01), Welschof
patent: 4493388 (1985-01-01), Welschof et al.
patent: 4765688 (1988-08-01), Hofman et al.
patent: 4804233 (1989-02-01), Hofmann et al.

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