Bearing race member and method of fabrication

Details Bearing race member and method of fabrication Bearing race member and method of fabrication

1989-08-08

1991-02-12

Yee, Deborah

Metal treatment

Compositions

Heat treating

148320, 148333, 148906, 148143, 384492, 384912, C22C 3802, C22C 3806, C21D 936

Patent

active

049921118

ABSTRACT:
A bearing race member composed of steel containing 0.60 to 0.85% carbon by weight, 0.5 to 1.0% by weight in a single content or total contents of Si and Al, and 13 ppm or less oxygen, wherein said bearing race member is quenched and subsequently tempered to contain 15% or less retained austenite therein. Even though basically made of structural carbon steel, the bearing race member has a long life equal to that of high-carbon chromium bearing steel and is superior in dimensional stability and crack fatigue strength.

REFERENCES:
patent: 3859146 (1975-01-01), Habrovec et al.
patent: 4871268 (1989-10-01), Furumura et al.

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