| abstract |
In a rolling bearing used under high temperature and high speed rotation, a grease-filled rolling bearing capable of effectively preventing brittle peeling on a rolling surface is provided. An inner ring (3) and an outer ring (4), a plurality of rolling elements (5) interposed between rolling surfaces (3a, 4a) of the inner and outer rings, and a cage (1) for holding the plurality of rolling elements (5) are provided. In the rolling bearing 2 in which the grease 7 is enclosed, the cage 1 is formed with a pair of claws opposed to one side surface of the annular body in the circumferential direction at equal intervals to hold a rolling element between the pair of claws. A grease reservoir that is continuous in the circumferential direction of the annular body on the inner surface of the pocket, and the grease is formed by adding an additive to a base grease comprising a base oil and a thickener, The additive contains at least one aluminum-based additive selected from aluminum powder and aluminum compound, and the blending ratio of the aluminum-based additive is 0.05 to 10 parts by weight with respect to 100 parts by weight of the base grease. [Selection] Figure 1 |