Stepping motor

A stepping motor according to the present invention includes a stator, and a rotor disposed facing the stator and movable in a predetermined movement direction. The stator has a plurality of main poles, windings for each of the main poles, a plurality of stator teeth disposed on each of the main poles at intervals in the circumferential direction, and stator slots formed between adjacent stator teeth. The rotor has a plurality of rotor teeth disposed at intervals in the movement direction, and rotor slots formed between adjacent rotor teeth. In at least one of the stator slots and the rotor slots, slot magnets comprising hard magnetic inserts magnetized in the depth direction of the slots are disposed. The width of the groove magnet in the moving direction is 60%-80% of the width of the groove in the moving direction. 本发明的步进电动机包括定子、与定子相对配置并可沿规定的移动方向移动的转子。定子具有多个主极、用于各个主极的绕组、沿周向隔开间隔地配置在各个主极上的多个定子齿、以及形成在相邻的定子齿之间的定子槽。转子具有沿所述移动方向隔开间隔地配置的多个转子齿、以及形成在相邻的转子齿之间的转子槽。在定子槽和转子槽中的至少一方的槽内，配置由沿该槽的深度方向磁化的硬磁性插入物构成的槽磁体。槽磁体在所述移动方