PURPOSE: To provide a means wherein it prevents the shaft of an output shaft part from being shaken without deteriorating the characteristic of a motor in a spindle motor or the like wherein the high rotation accuracy of a spindle part using a sliding bearing is required.

CONSTITUTION: A permanent magnet 12 which pushes an output spindle shaft 2 to one side in one radial direction of a sliding bearing 9 is arranged and installed so as to be close to a spindle part 1.