Tapered roller bearing

Details Tapered roller bearing Tapered roller bearing

2008-01-22

2008-01-22

Hannon, Thomas R. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S470000, C384S572000

Reexamination Certificate

active

07320550

ABSTRACT:
A tapered roller bearing includes an outer race, an inner race, a plurality of tapered rollers, and a cage. A small-diameter end portion of the inner race is formed with a small flange portion for limiting axial movement of the tapered rollers and a cylindrical portion which has a less diameter than the small flange portion and is connected to an axial outer end of the small flange portion. The cage is formed at a small-diameter end portion thereof with a bent portion which is bent inward in a radial direction. A small-diameter end portion of the cage has a bent portion which is faced to an outer surface of the cylindrical portion of the inner race with a predetermined clearance therefrom such that a labyrinth is created between the cage and the inner race.

REFERENCES:
patent: 1003055 (1911-09-01), Lockwood
patent: 1057861 (1913-04-01), Lockwood
patent: 1282450 (1918-10-01), Miller
patent: 1349307 (1920-08-01), Winn
patent: 3744863 (1973-07-01), Derner et al.
patent: 3767278 (1973-10-01), Knowles
patent: 5711738 (1998-01-01), Abe et al.
patent: 6491441 (2002-12-01), Vignotto et al.
patent: 08-177851 (1996-07-01), None
patent: 10-89353 (1998-04-01), None
patent: 11-48805 (1999-02-01), None
patent: 2000-220647 (2000-08-01), None
patent: 2002-349585 (2002-12-01), None
Japanese Office Action dated Sep. 4, 2007 with an English Translation.

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