| 摘要 |
A rolling bearing which has an outer ring, an inner ring and a plurality of rolling elements arranged rollably between the outer ring and the inner ring, wherein at least one member selected from the above outer ring, inner ring and rolling element contains C in an amount of 0.2 to 0.6 wt %, Cr in an amount of 2.5 to 7.0 wt %, Mn in an amount of 0.5 to 2.0 wt %, Si in an amount of 0.1 to 1.5 wt % and Mo in an amount of 0.5 to 3.0 wt %, has been subjected to a carburizing treatment or carburizing and nitriding treatment, a quenching treatment and a tempering treatment, has an amount of retained austenite in the surface thereof of 15 to 45 vol %, and has a surface hardness of HRC 60 or more. |
