Patent ID: 6478894
Filing Date: 2002-11-12
Classification: F16C,Y10T

Abstract:
A rolling bearing comprising an inner race, an outer race and plural rolling elements, in which at least one of said inner race, said outer race and said rolling elements comprises an alloy steel containing: 0.2 to 1.2 wt % of C; 0.7 to 1.5 wt % of Si; 0.5 to 1.5 wt % of Mo; 0.5 to 2.0 wt % of Cr; 0.1 to 0.3 wt % of Ti and 12 ppm or less of O; wherein said at least one of said inner race, said outer race and said rolling elements has been solution heat-treated, and thereafter, quenched and tempered so that TiC having a size of 0.1 &mgr;m or less is precipitated on a rolling surface of said at least one of said inner race, said outer race and said rolling elements.