| 摘要 |
PROBLEM TO BE SOLVED: To provide a superior brushless motor for disk rotation by solving the problem of deterioration of rigidity in an adjusting structure of perpendicularity of a rotation axis with respect to a motor base and a change in rotor height. SOLUTION: A bearing housing 2 holding a bearing 14 supporting the rotation axis 3 is fixed to the motor base 1 through projections 1a in a plurality of places, which are formed in the motor base 1. An inner side in a radial direction is deformed from the projections 1a of a flange part 2b in the bearing housing 2 while the bearing housing 2 is energized toward the motor base 1 by a spring force of a thrust cover 6 consisting of a spring material arranged on a base side of the motor base 1. Thus, perpendicularity of the rotation axis 3 is adjusted. COPYRIGHT: (C)2009,JPO&INPIT
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