| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw device in which length of a base along an axial direction of a screw shaft is shortened, and in which the number of part items is reduced. SOLUTION: A support member 13 to support a motor side end part of the screw shaft 14 and a motor housing 151 of a drive motor 15 are formed as a single body. An installation space for the support member 13 is integrated with an installation space for the motor housing 151.
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