Thrust needle-shaped roller bearing, rolling bearing, and cage o

Details Thrust needle-shaped roller bearing, rolling bearing, and cage o Thrust needle-shaped roller bearing, rolling bearing, and cage o

1995-08-21

1997-05-20

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384573, 384565, 384913, 384623, F16C 3356, F16C 3362

Patent

active

056306687

ABSTRACT:
A rolling bearing includes an outer raceway, an inner raceway, a plurality of rolling elements interposed between the outer raceway and the inner raceway, and a cage for holding the rolling elements away from each other at the same interval in a rolling direction of the rolling elements, the cage including a first layer subjected to a surface treatment of at least one of carbonitriding, phosphating, sulfonitriding and gas soft nitfriding, and a second layer formed of at least one of PTFE, MoS.sub.2, WS.sub.2, Ag and Sn when the first layer includes a treated surface subjected to the surface treatment of phosphating. The rolling bearing can stabilize the attitude of the rolling elements and retain the ease of grinding them. At the same time, the dynamic torque of the rolling elements can be minimized while insuring to prevent the rolling elements from falling away from the cage.

REFERENCES:
patent: 3740108 (1973-06-01), Fernlund
patent: 4225200 (1980-09-01), Dougall
patent: 4253714 (1981-03-01), Bhushan
patent: 4453024 (1984-06-01), Tagawa et al.
patent: 4871268 (1989-10-01), Furumura et al.
patent: 5122000 (1992-06-01), Matsumoto et al.
patent: 5271679 (1993-12-01), Yamazumi et al.

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