To provide a bearing usable at high rotation speed and having a long life, the bearing being used in a vacuum environment not permissive of oil content.

The rolling bearing 1 includes an inner ring 2, an outer ring 3, a plurality of rolling elements 4 interposed between the inner ring 2 and the outer ring 3, and a retainer 5 slidably contacting and retaining the plurality of rolling elements 4. The retainer 5 is made of a metal material or a heat resistant resin material, constituted by forming a film including tungsten disulfide powder on at least one surface or more of a retainer 5 surface, and a mixing rate of the tungsten disulfide powder in the film is 80-95 vol.%.