Rolling bearing

Details Rolling bearing Rolling bearing

1999-01-11

2000-08-01

Ta, Khoi Q.

Bearings

Rotary bearing

Antifriction bearing

384565, 384912, F16C 3332

Patent

active

060956925

ABSTRACT:
The present invention provides a rolling bearing comprising an inner ring, an outer ring and rolling elements as constituting members, wherein at least one of the members is formed by a steel material for bearing and has been subjected to carburizing or carbonitriding and titanium carbides or titanium carbonitrides having an average particle diameter of not more than 80 nm are dispersed in the surface and interior thereof, the steel material having an alloy composition composed of: C: 0.15 to 0.45% by weight; Si: 0.1 to 1.2% by weight; Mn: 0.2 to 1.5% by weight; Cr: 0.2 to 1.6% by weight; and Ti: 0.05 to 0.40% by weight. The rolling bearing is insusceptible to the occurrence of impressions particularly even in the presence of foreign matters, has excellent abrasion resistance, and is insusceptible to corrosion pitting (including hydrogen-induced crack) even under conditions that allow the occurrence of corrosion pitting in the presence of water.

REFERENCES:
patent: 4930909 (1990-06-01), Murakami et al.
patent: 5030017 (1991-07-01), Murakami et al.
patent: 5084116 (1992-01-01), Mitamura

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