| 摘要 |
In order to prevent fretting wear based on elastic deformation in the axial direction of an input-side disk (2c) due to the thrust force of a pressing device, female spline parts (13a), which are formed in the middle section in the axial direction in the inner circumferential surface of a center hole (19) of an input-side disk (2c), and male spline parts (12a), which are formed in the outer circumferential surface at one end in the axial direction of an input rotary shaft (1b), are spline coupled to each other, and a disk-side mating surface part (22), which is formed at the portion of the inner circumferential surface of the center hole (19) which is adjacent to the other end of the female spline parts (13a), and a shaft-side mating surface part (23), which is formed at the portion of the outer circumferential surface of the input rotary shaft (1b) which is adjacent to the other end of the male spline parts (12a), are mated to each other with an interference fit. |
