In the present invention, to reduce the noise of a spindle motor, a bush member is interposed between a base plate and an FDB unit. The base plate is a base of the spindle motor and of which a case of a hard disk drive is consisted. The FDB unit is a bearing unit which has a shaft, a sleeve having an inner peripheral surface opposed to an inner peripheral surface of the shaft, and a bearing housing formed integrally with the sleeve.

 
Web www.patentalert.com

< Motor having dynamic pressure fluid bearing and disc drive apparatus provided with the motor

< Low power spindle motor with a fluid dynamic thrust bearing having a reduced outer diameter

> Double row ball bearing

> Hydrodynamic bearing unit
~ 00231