Thrust ball bearing

Details Thrust ball bearing Thrust ball bearing

2007-01-30

2007-01-30

Hannon, Thomas R. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

Reexamination Certificate

active

10854265

ABSTRACT:
The object is to reduce the contact surface pressure between the balls and the retainer of a thrust ball bearing at slide contact positions, thereby suppressing the wear of the retainer. By increasing the depth of drawing of inner and outer portions embracing the balls received in pockets of the retainer, when the balls roll on the raceways of the outer ring and the inner ring, the balls and the retainer are adapted to slidably contact each other at three portions, i.e. the peripheral edge of each pocket, and the outer portion and the inner portion of the retainer. Thus, it is possible to reduce the contact surface pressure at the respective slide contact positions compared to the prior art. Thus, it is possible to suppress the wear of the retainer.

REFERENCES:
patent: 1114932 (1914-10-01), Straub
patent: 1176804 (1916-03-01), Winkler
patent: 1638271 (1927-08-01), Nordstrum
patent: 2120154 (1938-06-01), Schildgen et al.

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