| 摘要 |
The present invention provides a rolling ball bearing that uses a rolling element-guiding retainer, said rolling ball bearing having excellent lubrication properties between a ball and a retainer guide part, and being applicable up to a high-speed rotation range. This rolling ball bearing is provided with an inner ring and outer ring which are bearing rings, a plurality of balls which are rolling elements that are interposed between the inner and outer rings, and an annular retainer (5) that retains the ball, wherein: a lubricant is supplied to or enclosed in a space inside the bearing; the retainer (5) guides the rolling elements and has pocket parts (9) for holding the balls at a plurality of points in the circumferential direction; the pocket parts (9) have an approximately polygonal shape wherein each vertex (10) has a circular arc shape, and have an implantation part (6) formed by implanting a fiber at at least one of the vertices (10). |
