GREASE COMPOSITION AND ROLLING BEARING

摘要

PROBLEM TO BE SOLVED: To provide a rolling bearing that is excellent not only in heat resistance capable of holding out against the use under high temperature environment of >180°C but in silence, and especially is suitable for automobile electric components such as an alternator and an electromagnetic clutch, and automobile engine accessories such as an idler pulley; and to provide a grease composition suitable for the rolling bearing to be used under the high temperature environment.SOLUTION: A grease composition is formed by mixing and blending a base oil having a kinematic viscosity at 40°C of 20 to 200 mm/s with a urea compound as a first thickener and carbon fluoride as a second thickener. A rolling bearing having the grease composition enclosed therein is also provided.