To provide a motor which can be constructed, so as to eliminate the adjustment of the loosening in the thrust direction, stabilize its bearing and avoid thrust noise.

This motor has a motor case 1, a stator and a rotor rotating relative to the rotor which are housed in the motor case 1, a motor shaft 4 integrated with the rotor, and a bearing 5 supporting the motor shaft 4 rotatably at a cylindrical bearing holder 6 of the motor case 1. Pressure is applied radially to the bearing 5 via its outer surface to fix the bearing 5 to the bearing holder 6.