The stator constituting the motor body is provided with, e.g., an annular stator core having numerous teeth on an inner-peripheral side thereof, and a multiphase stator coil configured by winding a magnet wire around the teeth of the stator core. The stator is held by an inner periphery of the body portion of the motor housing.

The rotor is provided with a rotor core, a plurality of permanent magnets that are attached to the rotor core in order to form a multipolar magnetic field on an outer-peripheral side of the rotor core, and a rotating shaft coupled with an axial center part of the rotor core. The rotor is arranged on an inner side of the stator in a state of sharing a same center axis as the stator, and is oriented such that magnetic poles of the magnetic field formed on the outer-peripheral side of the rotor core face the teeth of the stator core with a gap interposed therebetween. The rotating shaft of the rotor is rotatably supported by first and second bearings that are respectively held by the first end member and the second end member that respectively close the one axial end and the other axial end of the motor housing.