| 摘要 |
PURPOSE:To absorb the thermal deformation caused by the difference of thermal expansion coefficient between a hub member and a yoke member by providing space over the overall length of the yoke member, between the yoke member and the hub member, and fixing one end of the yoke member to one end of the hub member, and elastically biasing the other end of the yoke member. CONSTITUTION:One end of a hub member 6 and one end of a yoke member 8 are connected with each other by such a method as shrink fitting so as to provide space substantially over the overall length of the yoke member 8. Next, a circular recess is formed at the inside of a bush member 18, and the other end of the yoke member 8 is received by the circular recess. Furthermore, a rectangular circular groove is formed at the face which defines the single-side periphery of the circular recess, and an O-ring is installed in this circular groove, and also an U-shaped elastic ring member 56 is arranged at the bottom of the circular recess. Hereby, the abnormal deformation of the hub member can be prevented, and the undulation can be prevented. |
