| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw device in which the centering of a screw shaft and a seal member and the phase adjustment of the seal member and the screw shaft can be easily performed regardless of the dimension of the seal member in an axial direction.SOLUTION: An end of a nut 3 of the ball screw device 100 and a fixing part 11 of the seal member 7 compose a spigot part 13. Long holes 12 for fixing are formed in the seal member 7. The long holes 12 penetrate in the axial direction of the screw shaft, have an arc-like shape formed along the rotation axis of the screw shaft as a center, and fix the seal member 7 to an end part of the nut 3 by means of a fixing screw 8 inserted through the long holes 12. |
