| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor which can easily perform replacement of a rotor and a stator, and others and also can improve accuracy in detection, with adjustment of a zero point in axial direction of the stator and the rotor simple. SOLUTION: A motor such as a candle motor or the like is equipped with a bearing abrasion monitor which monitors the abrasion of the bearing for bearing a rotor from displacement of the rotor, based on the detection signals of detection coils C2-C6 arranged severally at the core parts 27 for embedment at both ends in axial direction of a stator 10. In this case, it is positioned, with the center CL of the core part 27 for embedment on one end side 10a in axial direction of the stator 10 and the end face S1 on one end side in axial direction of the rotor 11 in conformity, and also the other end side in axial direction of the rotor 11 is projected outward by a specified dimension t from the embedded core part 27 on the other end side in axial direction of the stator 10, so as to make the output of the detection coil C6 on the other end side unchangeable. |
