| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw device which can fix ball tubes to a nut without using a screw irrespective of an outside diameter dimension of the nut, and can suppress an increase of the number of assembling processes even if the nut is arranged with a plurality of the ball tubes.SOLUTION: An insertion hole 70 for accommodating a tube pressing member 40 therein is formed at an external peripheral face side of a nut 13. The tube pressing member 40 comprises two grooves 43, 43 for holding two ball tubes 19, 19, and fixed to the nut 13 by the engagement of a pair of claws 64, 64 which are accommodated in the insertion hole 70 in a state that the ball tubes 19 are held in the grooves 43, and formed at an external peripheral side of the tube pressing member 40, and a pair of recesses 73, 73 which are formed at an internal peripheral face of the insertion hole 70.SELECTED DRAWING: Figure 2 |
