| 摘要 |
PROBLEM TO BE SOLVED: To provide a PM stepping motor with an output gear having a structure in which the length of the motor in the axial direction is shortened through use of a single bearing.SOLUTION: A PM stepping motor 10 with an output gear is equipped with: an attachment plate 17 to which a plate section 11a of an A-phase outer yoke 11A configuring an outer stator is fixed; a bearing 18 that projects inwards from the inner surface side of the attachment plate 17 and is held by a burring section 17a of the attachment plate 17 that projects towards the outer surface side; a motor shaft 16 that passes through the bearing 18; an output gear 19 that is fixed to a portion of the motor shaft 16 that projects outwards from the bearing 18; and an inner rotor magnet 15 that is fixed to a portion of the motor shaft 16 that projects inwards from the bearing 18. The inner rotor magnet 15 side of the bearing 18 is fitted through a center hole h of the A-phase outer yoke 11A to a recess section 15a of the inner rotor magnet 15 with a gap therebetween. A center hole H of a B-phase outer yoke 11B is open. |
