| 主权项 |
1. A rolling bearing unit comprising:
a rolling bearing including an inner ring, an outer ring, and a plurality of rolling elements disposed between the inner ring and the outer ring; spacers including an inner ring spacer disposed adjacent to the inner ring and an outer ring spacer disposed adjacent to the outer ring; and a grease reservoir in which grease is reserved, and which is formed at a fixed ring spacer out of the inner ring spacer and the outer ring spacer, wherein the fixed ring spacer out of the inner ring spacer and the outer ring spacer has a first inner wall and a second inner wall that are opposed to each other in an axial direction of a shaft on which the rolling bearing is supported so as to define the grease reservoir, and the rolling bearing unit comprises a grease medium that connects a fixed ring out of the inner ring and the outer ring to the second inner wall located so as to be opposed to the fixed ring in the axial direction, the grease medium being able to be impregnated with a base oil contained in the grease. |
