Patent ID: 6171414
Filing Date: 2001-01-09
Classification: F16C,Y10S

Abstract:
-1.5 wt. % Si, 0.5-2.0 wt. % Cr, and 0.5-2.0 wt. % Mo in a steel, and is subjected to carbonitriding treatment such that a surface carbon concentration at the surface of a raceway track of said inner race is 0.8 wt. %-1.1 wt. %, and a surface nitrogen concentration thereof is 0.2-0.6 wt. %, said rolling bearing being one to be used for a turbocharger,the maximum diameter of a carbide present in the surface of the raceway of 4 .mu.m or less, andthe average amount of residual austenite present in the surface and the core of the bearing is 5 vol. % or less.