| 摘要 |
A ball spline capable of adjusting a gap is provided to reduce the number of groove machining and machining costs by machining V or U-shaped grooves on a surface of a shaft. A ball spline capable of adjusting a gap comprises an opened ball bush(50), a separated ball retainer(30) and a snap ring. The opened ball bush supporting a shaft(10) and moving linearly and the separated ball retainer has a track groove and a circulation hole so as to be engaged with a track groove of the shaft and allow a ball(40) to be circulated. The snap ring is located a rear surface of the track groove of the ball retainer, and provides elasticity to a control barrel(60) including a fixing bolt(80) and a control bolt(90) for controlling the gap in center point direction of the ball and the shaft and the ball. |
