| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid bearing device provided with a hub having a metal part, which fixes a shaft member accurately without deforming the metal part. SOLUTION: A recessed part 13a1 is formed on an inner circumferential surface 13a of a core metal 13 (the metal part) of the fluid bearing device. Thereby, when the core metal 13 is pressed in the shaft member 2, a press-in area of a fitting surface is narrowed, and press-in resistance is reduced. The core metal 13 is pressed in the shaft member 2, therefore, without deforming the core metal 13, and both can be fixed accurately. COPYRIGHT: (C)2008,JPO&INPIT
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