Method of manufacturing ball screw device
AssigneeNsk Ltd.
InventorsWei XU, Takayuki YABE, Toshiaki SUZUKI
Life of this patent
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Abstract
A method of manufacturing a ball screw device includes a nut unit preparation step, a screw shaft preparation step, and an assembly step. In the nut unit preparation step, a nut unit is prepared in which a circulation component, a ball, and a temporary shaft that prevents the ball from falling off are assembled to a nut provided with an inner peripheral track surface. In the screw shaft preparation step, a screw shaft provided with an outer peripheral track surface is prepared. In the assembly step, after the nut unit preparation step and the screw shaft preparation step, the temporary shaft of an arbitrary nut unit is replaced with an arbitrary screw shaft to manufacture the ball screw device.
Claims7
A method of manufacturing a ball screw device, the method comprising:
- a nut unit preparation step of preparing a nut unit in which a circulation component, a ball, and a temporary shaft that prevents the ball from falling off are assembled to a nut provided with an inner peripheral track surface;
- a screw shaft preparation step of preparing a screw shaft provided with an outer peripheral track surface;
- and
- an assembly step of replacing the temporary shaft of any of the nut units with any of the screw shafts to manufacture a ball screw device after the nut unit preparation step and the screw shaft preparation step.
Dependencies are inferred from the claim text.