Patent ID: 6943471

Claim:
A motor, including: (a) a stator, comprising (a-1) a core, (a-2) a drive coil wound on the core, (a-3) a housing having an opening and a bottom, and (a-4) an insulator for insulating the drive coil and the core, which is positioned at the outer periphery of the housing, covering a part of the core and being formed one-piece with the housing; (b) a stator casing for encasing the stator; (c) a rotor disposed outside the stator, comprising (c-1) a rotary shaft, (c-2) a rotary member fitted to the rotary shaft, and (c-3) a magnet which is installed on the inner wall of the rotary member and opposed to the core; (d) a bearing which is disposed inside the housing and serves to support the rotary shaft; and (e) an oil retainer, which is stored in a storing section provided at the housing, being arranged so as to partially come in contact with the bearing.