| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic pressure bearing device for further enhancing the thrust bearing function of a thrust bearing part. SOLUTION: A first thrust bearing part T1 is arranged between an upper side end surface 8b of a bearing sleeve 8 and a lower side end surface 2b2 of a flange part 2b of a shaft member 2, and a second thrust bearing part T2 is arranged between a lower side end surface 2a2 of a shaft part 2a of the shaft member 2 and an inner surface 7c1 of a bottom part 7c of a housing opposed to this surface. Since the first thrust bearing part T1 and the second thrust bearing part T2 are respectively constituted for floatingly supporting the shaft member 2 upward (in the same direction), the high thrust bearing function can be provided. COPYRIGHT: (C)2006,JPO&NCIPI
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