| 摘要 |
Provided is a structure that can prevent excessive contact pressure at the rolling contact surfaces of rollers disposed in a pocket (21a) at a first circumferential end and in a pocket (22a) at the other circumferential end of a discontinuous portion (11b), and at the rolling contact portions of the tracks of the outer race and the inner race. An engaging portion (14a) for engaging, in a state of inhibited relative displacement in relation to the axial direction, a first circumferential end portion (12a) and the other circumferential end portion (13a) end of the discontinuous portion (11b) is constituted by a first asperity portion (15b) and a second asperity portion (16b). The first asperity portion (15b) is constituted by a first engaging protruding portion (17b) and a pair of first engaging recessed portions (18b, 18b). The second asperity portion (16b) is constituted by a pair of engaging protruding portions (19b, 19b) and a second engaging recessed portion (20b). An engaging portion-side pocket (23a) formed in the first engaging protruding portion (17b) passes through the first engaging protruding portion (17b) in a diametrical direction. |
