Patent ID: 8449198
Filing Date: 2013-05-28
Classification: B60B,C04B,F16C,F16D,Y10T

Abstract:
1. A rolling contact member in a rolling bearing, the rolling contact member being one of a race member and a rolling element disposed in contact with said race member on an annular raceway, the rolling contact member being configured of a sintered body that contains as a main component a β-sialon represented by a compositional formula of Si 6-Z Al Z O Z N 8-Z and satisfying 0.1≦z≦3.5 and has a remainder formed of an impurity, the rolling contact member having a rolling contact surface serving as a surface contacting another rolling contact member, said rolling contact surface being included in a portion having a high density layer higher in density than an inner portion, wherein said high density layer has a surface included in a portion having a higher density layer higher in density than another portion of said high density layer.