Patent ID: 7186027

Claim:
A fan motor comprising: an integral bearing member defining therein an axial inner bearing hole and forming a ventilating path in a wall portion thereof to communicate a bottom of the bearing hole with an exterior of the bearing member, the ventilating path comprising a first section extending through the wall portion of the bearing member and communicating with the bearing hole and a second section communicating the first section with the exterior of the bearing member, and a plug disposed in an outer end of the first section; a stator assembly mounted to an outer periphery of the bearing member; a rotor assembly comprising a rotary shaft extending into the bearing hole and a permanent magnet confronting the stator assembly; and lubricating oil filled between the bearing member and the rotary shaft and a bearing pattern formed between the bearing member and the rotary shaft to establish dynamic pressure to separate the rotary shaft and the bearing member in radial direction when the rotary shaft rotates.