| 摘要 |
PROBLEM TO BE SOLVED: To provide a dynamic pressure fluid bearing motor and a disk driving device provided with the same for providing a long lifetime and stable predetermined performance in a long period of time. SOLUTION: The dynamic pressure fluid bearing motor 100 includes a through hole 17 formed on the shaft 7 and opening on one end side end surface and other end side side surface of a shaft 7, and the through hole 17 is opened on the other end side end surface through a funnel shaped part 17C of which diameter gradually increases to the other end side end surface. The disk driving device 75 is formed by using the dynamic pressure fluid bearing motor 100 with a disk shaped recording medium 1 fixed on a hub 2. COPYRIGHT: (C)2005,JPO&NCIPI |
