| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw device being easy to mount on a nut of a circulation piece, and requiring a shorter manufacturing time.SOLUTION: A ball screw device 10 includes a screw shaft 1, a nut 3 fitted to the screw shaft 1 via a plurality of balls 2, and a circulation component 5 for circulating the balls 2 rolling between the screw shaft 1 and the nut 3. The nut 3 is formed with a mounting hole 7 for the circulation component 5 to be mounted therein, and has a fixing member 15 for fixing the circulation component 5 inserted into the mounting hole 7 of the nut 3. The fixing member 15 and the circulation component 5 are formed with locking parts 16, 6 for locking into the mounting hole 7 of the nut 3, respectively. In the mounting hole 7 of the nut 3, there are provided a locking object part 9c to which the locking part 6 locks to restrain the movement of the circulation component 5 to the radial inside, and a locking object part 11 to which the locking part 16 locks to restrain the movement of the fixing member 15 to the radial outside. |
