Motor

A motor comprising:

• a stationary portion;
• and
• a rotating portion that rotates about a rotation axis extending in a vertical direction;
• wherein
• the rotating portion includes:
• a shaft extending along the rotation axis;
• and
• a rotor that rotates together with the shaft;
• the stationary portion includes:
• a stator located radially outside of the rotor;
• and
• a magnetic sensor located above the rotor to detect a rotational position of the rotor;
• the rotor includes:
• a rotor core including a ferromagnetic body fixed to the shaft;
• a rotor magnet located radially outside of the rotor core and under the magnetic sensor, in contact with the rotor core or located opposite to the rotor core with a first gap intervening therebetween, and including an upper end surface located at an axial level higher than an axial level of an upper end surface of the rotor core;
• and
• at least one rotor holder including a ferromagnetic body, and located above the rotor core and radially inside of the rotor magnet;
• wherein
• the rotor core is defined by laminated steel sheets placed one upon another in an axial direction, and including a recessed portion recessed from each of the upper end surface and an outer circumferential surface of the rotor core;
• and
• an inner circumferential surface of a lower end portion of the at least one rotor holder is fixed to a radially inner surface of the recessed portion.