Rolling bearing with solid lubricant

Details Rolling bearing with solid lubricant Rolling bearing with solid lubricant

1991-11-27

1993-05-04

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384565, 384908, F16C 1902

Patent

active

052075133

ABSTRACT:
The raceway surfaces of the inner and outer rings 1 and 2 and the surfaces of the rolling elements 3 are formed with lubricating films 1a, 2a and 3a of polytetrafluoroethylene having average molecular weight of not more than 5000 {PTFE (A)}. PTFE heretofore used for rolling bearings is a polymer having average molecular weight of more than 1.times.10.sup.5 mostly 1.times.10.sup.6 -1.times.10.sup.7, but PTFE(A) is very low in shear strength and soft as compared with PTFE polymer.

REFERENCES:
patent: 4674164 (1987-06-01), McCloskey
patent: 4696581 (1987-09-01), Tsushima et al.
patent: 4997295 (1991-03-01), Saitou
patent: 5028150 (1991-07-01), Kronenberger et al.

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