| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent deterioration of performance of a thrust bearing part in a motor including a sleeve unit comprising a sleeve having dynamic pressure grooves formed on both end surfaces adhered with a sleeve housing by an adhesive. <P>SOLUTION: The adhesive 220 is applied onto an inside surface 2222 of the sleeve housing 222, and the sleeve 221 is inserted to the sleeve housing 222 from the lower end thereof. A chamfered adhesive retention part 56 is provided on the peripheral part at the lower end of the sleeve 221, so that a partial adhesive 220a is retained between the adhesive retention part 56 and the inside surface 2222 of the sleeve housing 222. Consequently, a large upper end surface of the sleeve 221 to be opposed to a rotor hub can be ensured while preventing adhesion of the adhesive 220 to the upper end surface, and deterioration of performance of the thrust bearing part of the motor can be prevented. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
