| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball spline capable of preventing a retaining ring of the ball spline from being deformed and broken. SOLUTION: The retaining ring 21 locked on a locking groove 72 formed at the outer periphery of an input shaft, 1 is formed into a roughly C shape. Both ends of the retaining ring 21 are disposed inside a ball spline groove 61 in the input shaft 1. There are provided stoppers 21a, 21a which are bent in the axial line O direction of the input shaft 1 so that they may separate from balls 63. |
