| 摘要 |
PROBLEM TO BE SOLVED: To firmly connect an inner ring to a shaft, which causes little backlash while surely preventing the come-off without using a retaining ring. SOLUTION: The two member connecting structure comprises: the inner ring 20 mounted on a constant velocity universal joint for transmitting torque while permitting angle displacement between an outer ring and itself; and the shaft 50 pressed into a shaft hole inner diameter 26 of the inner ring 20. The shaft hole inner diameter 26 of the inner ring 20 is uncured, and an uneven portion 54 is formed on a shaft portion outer diameter 52 of the shaft 50 along the circumferential direction and a hardened layer (n) is formed on the shaft portion outer diameter 52. The shaft portion outer diameter 52 of the shaft 50 is pressed into the shaft hole inner diameter 26 of the inner ring 20 to plastically join the shaft 50 to the inner ring 20. On the front end side of the uneven portion of the shaft portion outer diameter 52 of the shaft 50, a protrusion 56 is provided which has a tapered face 58 diameter-shrunk toward the front end of the shaft 50 and whose outer diameter is smaller than that of the uneven portion 54. At the end on the shaft insertion side of the shaft hole inner diameter 26 of the inner ring 20, a cylindrical inner diameter portion 28 is formed which is smaller than the protrusion 56 of the shaft 50. The protrusion 56 of the shaft 50 is fitted in the cylindrical inner diameter portion 28 of the inner ring 20. COPYRIGHT: (C)2008,JPO&INPIT
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