| 摘要 |
A retainer (20) is provided with a first member (21) and a second member (22), which are circular plate-shaped and which have holes formed at the center thereof in the radial direction. The first member and the second member respectively have openings (45, 55) arranged at intervals in the circumferential direction, the openings (45, 55) forming pockets for receiving rolling bodies (10). The first member (21) also includes a protrusion (46) which protrudes in the radial direction from a flange section (44) toward the side on which the opening (45) is located, the protrusion (46) serving as a separation prevention section which permits the relative movement of the second member (22) combined with the first member (21) in the axial direction and which prevents the separation of the second member (22) from the first member (21). |
