| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw for an actuator capable of being inexpensively manufactured and fitting a pin with high accuracy. SOLUTION: In this ball screw for the actuator, wherein a plurality of balls exist on rolling passages formed between ball screw grooves opposite to each other, of a screw shaft and a nut, a pin supporting projection part 14 is formed in a state of being projected to a part in the circumferential direction, of the nut 2. A pin fitting hole 15 is formed on the pin supporting projection part 14. A pin 16 is mounted in a state of being partially fitted in the pin fitting hole and projected from the pin supporting projection part 14. The nut 2 and the pin 16 are quenched in a state that the pin 16 is fitted in the pin fitting hole 15. COPYRIGHT: (C)2005,JPO&NCIPI
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