MOTOR

PROBLEM TO BE SOLVED: To make it possible to favorably prevent change in thrust permission clearances and stably hold a rotor portion through a simple constitution. SOLUTION: Stopper members form the thrust permission clearances S1 and S2 between them and bearing portions 12 and 13, respectively. The stopper members are formed of a pair of bushes 21 and 22 that are respectively abutted against the axial end faces 16a and 16a of a motor core 16 so that the motor core is sandwiched between them from both sides in the axial direction. A connecting member 25 abutted against the protruded-side end face 22c of the bush 22 in the axial direction or a connecting member 24 abutted against the protruded-side end face 21c of the bush 21 is opposedly disposed, so that the thrust permission clearances S1 and S2 are formed between it and the respective bearing portion 13 and 13. Thus, the thrust permission clearances S1 and S2 are so formed that their amounts in the axial direction are unchanged. COPYRIGHT: (C)2005,JPO&NCIPI