| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid bearing device enabling injection of an appropriate amount of lubricant into an internal space. SOLUTION: A first gas-liquid interface P1 is provided at one end side of a radial bearing clearance R, and a second gas-liquid interface P2 is provided at the other end side. Accordingly, even if a first flange part (hub 3) is extended to the outer diameter side so that the first gas-liquid interface P1 is difficult to confirm from the outside, the oil injection into the bearing device can be performed while confirming the second gas-liquid interface P2, and the lubricant can be thus injected in an appropriate amount. Consequently, a trouble by shortage or excess of oil can be avoided. COPYRIGHT: (C)2008,JPO&INPIT
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