Patent ID: 6565677
Filing Date: 2003-05-20
Classification: F16C,Y10S

Abstract:
A rolling bearing having races and rolling elements, at least said race comprising: 0.60 wt % to 0.95 wt % of C; 10.0 wt % to 13.0 wt % of Cr; and at least one kind of 0.5 wt % to 2.0 wt % of Mo and 0.5 wt % to 2.0 wt % of V with the balance of Fe,wherein the surface hardness of a raceway surface of said recess is not less than HRC 58, and wherein the raceway surface of said races has a passive film with the thickness of 5 to 100 nm, wherein the passive film corresponds to a dense oxide layer which protects the raceway surface against corrosion in association with chromium.