MOTOR AND MOTOR INSPECTION METHOD

PROBLEM TO BE SOLVED: To provide a motor and a motor inspection method capable of efficiently inspecting contact between a permanent magnet and a stator when a rotor is rotated.SOLUTION: A motor 1 is an inner rotor type stepping motor and includes a rotation shaft 50 having an outer peripheral surface 55 with a spiral groove 58 formed thereon. In the motor 1, the rotation shaft 50 and a stator 40 are electrically insulated from each other, and an outer peripheral surface 590 of a permanent magnet 59 facing the stator 40 and the metal rotation shaft 50 are electrically continuous with each other in a rotor 5. At the time of inspection of whether or not the permanent magnet 59 is in contact with the stator 40 when a rack is driven through the spiral groove 58 of the rotation shaft 50, electrical continuity between the rotation shaft 50 and the stator 40 is monitored while the rotor 5 is rotated with external force (lateral pressure) applied to the rotation shaft 50 in a direction orthogonal to the axial direction of the rotation shaft 50.