Roller bearing

Details Roller bearing Roller bearing

2007-05-22

2007-05-22

Hannon, Thomas R. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S572000, C384S576000

Reexamination Certificate

active

11072436

ABSTRACT:
To provide a roller bearing assembly, which can be assembled with a minimized number of assembling steps and without any drop-off preventing sleeve being employed and which can provide a large load bearing capacity, the roller bearing assembly includes an inner race1having a raceway surface1adefined therein, a plurality of rollers2, and a ring-shaped roller retainer3having a plurality of pockets4defined therein in a direction circumferentially thereof for accommodating therein the respective rollers2in a circular row. The roller retainer3also has pillars5each defined between the neighboring pockets4. The roller retainer3is positioned on the inner race1with each of the pillars5thereof intervening between the neighboring rollers2to thereby retain the rollers2in position within the respective pockets4from a direction radially outwardly of the row of the rollers2. The diameter of the circle depicted by and in touch with the pillars5is chosen to be greater than the diameter of the pitch circle PCD depicted in the circular row of the rollers2.

REFERENCES:
patent: 1426578 (1922-08-01), Lott
patent: 5039231 (1991-08-01), Kispert et al.
patent: 6102579 (2000-08-01), Kupietz
patent: 6857785 (2005-02-01), Takahashi et al.
patent: 2003/0077017 (2003-04-01), Fugel et al.
patent: 2005/0185875 (2005-08-01), Kono et al.
patent: 2006/0104560 (2006-05-01), Kono et al.
patent: 2005-54871 (2005-03-01), None
Furukawa Taichiro et al., Patent Abstracts of Japan, “Shell-Shaped Roller Bearing and Manufacture Thereof”, Publication No. 06-307456 and Publication Date: Nov. 1, 1994.
Oba Fumio et al., Patent Abstracts of Japan, “Roller Bearing”, Publication No. 07-238940, Publication Date: Sep. 12, 1995.

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