| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide a fluid bearing device capable of stably exhibiting high rotating performance. SOLUTION: The fluid bearing device 1 has a bearing member 7 comprising a resin part 10 integrally formed with a small diameter part 10a and a first large diameter part 10b and a second large diameter part 10c arranged on both axial sides, and a core part 11 arranged at the outer periphery of the small diameter part 10a; a seal member 9 arranged on the inner diameter side of the first large diameter part 10b; a shaft member 2 forming a radial bearing clearance between itself and the small diameter part 10a; and radial bearing parts R1, R2 supporting the shaft member 2 rotatably in a radial direction with an oil film of lubricating oil filled in the radial bearing clearance. The wall thickness of the resin part 10, specifically the wall thickness of the small diameter part 10a, large diameter parts 10b, 10c and connection parts 10d, 10e, is formed almost uniformly on the whole by the presence of the core part 11. COPYRIGHT: (C)2007,JPO&INPIT
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