Motor

A motor comprising:

• a rotor part having a rotor shaft and a rotor magnet;
• a stator part which is oppositely disposed to the rotor magnet via a gap space;
• a bearing which rotatably supports the rotor shaft;
• a spring member which abuts with one end of the rotor shaft to urge the rotor shaft in an axial direction;
• a spring member side restricting part which is provided in the spring member to prevent fluctuation in a radial direction of the rotor shaft;
• a rotor shaft side restricted part which is provided in the rotor shaft and engages with the spring member side restricting part;
• a spherical recessed part which is formed in one of the rotor shaft side restricted part and the spring member side restricting part;
• and
• a spherical protruded part which is formed in the other of the rotor shaft side restricted part and the spring member side restricting part;
• wherein the spring member urges the rotor shaft in the radial direction;
• wherein the spring member side restricting part abuts with the rotor shaft side restricted part at a position deviated from a shaft center line of the rotor shaft to urge the rotor shaft in an axial direction and in a predetermined radial direction;
• and
• wherein an outer peripheral face of the rotor shaft is brought into contact with an inner peripheral face of a bearing part of the bearing at a contact position which is determined by the predetermined radial direction to regulate a contacting position of the rotor shaft with the bearing part for preventing fluctuation of the rotor shaft.