| 摘要 |
A prong type cage (5) is incorporated in a double row roller bearing and holds the rollers arranged in one of the two rows. The prong type cage (5) has an annular portion (10) and multiple cage bars (20). Pockets (7) in which the rollers are held are defined at positions on a side of the one side face of the annular portion (10) and between the cage bars (20) adjacent to each other in the circumferential direction. Recesses (16) are formed in a face (15) of the annular portion (10), the face (15) being opposed to end faces of the rollers disposed in the pockets (7). The recesses (16) are opened toward the end faces of the rollers to retain grease between the recesses (16) and the end faces of the rollers. The recesses (16) are opened at an inner peripheral face (12) of the annular portion (10) to introduce the grease that is present on the inner peripheral face (12) of the annular portion (10) into the recesses (16). |
