Rolling bearing unit for a drive wheel and a wheel driving unit

Details Rolling bearing unit for a drive wheel and a wheel driving unit Rolling bearing unit for a drive wheel and a wheel driving unit

2005-06-21

2005-06-21

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S544000

Reexamination Certificate

active

06908231

ABSTRACT:
A rolling bearing unit for a drive wheel comprises a hub and a double row rolling bearing thereon. The hub has a first inner ring raceway formed on an inner ring element integrally or separately formed with the hub in an intermediate portion, and a fit cylindrical surface section in a part closer to the inner end of the outer peripheral surface. A separate inner ring having a second inner ring raceway is fitted on the hub, with the axially inner end surface pressed by a caulking portion formed by plastically deforming a cylindrical section formed in the axially inner end portion of the hub in a state that the inner ring is fitted on the fit cylindrical surface section, to be fixed to the hub.

REFERENCES:
patent: 5490732 (1996-02-01), Hofmann et al.
patent: 6422758 (2002-07-01), Miyazaki et al.
patent: 6485188 (2002-11-01), Dougherty
patent: 0854303 (1998-07-01), None
patent: 0 992 698 (2000-04-01), None
patent: 1063437 (2000-12-01), None
patent: 1 129 868 (2001-09-01), None
patent: 2000-087979 (2000-03-01), None

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