| 摘要 |
PROBLEM TO BE SOLVED: To improve adhesive force between a resin housing and a metal bracket. SOLUTION: A bearing sleeve 8 is fixed inside the housing 7 for supporting a shaft member 2 in no contact therewith in the radial direction using the hydrodynamic operation of lubricating oil generated in a radial bearing gap between the shaft member 2 and the bearing sleeve 8. Onto the outer periphery of the housing 7, the metal bracket 6 is adhered and fixed via which a stator 4 of a motor is mounted thereon. The housing 7 is formed of a resin, and alkaline etching treatment is given to the surface thereof to improve adhesive force between the resin housing 7 and the metal bracket 6. COPYRIGHT: (C)2006,JPO&NCIPI
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