| 摘要 |
PROBLEM TO BE SOLVED: To reduce working cost by reducing the working amount of a nut, and to prevent a circulating component from being damaged by being pushed out by a ball in the inner side. SOLUTION: In this ball screw device 10, the circulating component 17 attached to the side surface of the nut 14 in the peripheral direction is provided with a pair of legs 20 fitted into a pair of circulation holes 24 formed at the side surface of the nut 14 in the peripheral direction, and a main body 21 connecting the pair of the legs 20, and is divided into two along the circuit direction of a ball circuit. A fitting recession 22 to which the main body 21 of the circulating component 17 is fitted is formed on the side surface of the nut 14 in the peripheral direction. COPYRIGHT: (C)2007,JPO&INPIT
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