| 摘要 |
PROBLEM TO BE SOLVED: To adjust a clearance of a spline without changing the conventional basic structure by forming additional structure, which can be easily worked with simple parts. SOLUTION: A seal nut 3 provided with a seal member 8, which is formed of an elastic material having a tooth profile cylindrical part 8a having the same tooth profile with the spline tooth profile of a spline male shaft 2, is engaged with an end of a spline female shaft 1, and the spline male shaft 2 is fitted in the spline female shaft 1 through the seal member 8, and the seal nut 3 and the spline female shaft 1 are relatively rotated so that spline teeth 1a, 2a of the spline male shaft 1 and the spline female shaft 2 is partially abutted on each other for contact, and the seal nut 3 is fastened for fixation by a lock nut 6. |
