Rolling bearing

Details Rolling bearing Rolling bearing

1993-10-12

1995-06-27

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384492, 384565, 384569, 384912, 384913, F16C 1900

Patent

active

054274575

ABSTRACT:
An object of this invention is to provide a rolling bearing in which, as for the rolling elements, it is unnecessary to employ a high level heat treatment such as carburizing or carbonitriding which requires a long period of time to achieve, and which is sufficiently long in service life even when used with a lubricant containing foreign matters. In a rolling bearing, the amount of residual austenite (.gamma..sub.R vol %) in the surface layer of at least one of the inner and outer races is in a range of 25 to 40 vol %, and the surface hardness (Hv) thereof meets the following condition:

REFERENCES:
patent: 4904094 (1990-02-01), Furumura et al.
patent: 5137375 (1992-08-01), Murakami et al.

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