| 摘要 |
A fluid bearing for rotatably supporting a rotary shaft. A bearing member comprises a plurality of U-shaped fluid pockets and a plurality of first land portions formed on the bearing surface of the bearing member. Each of the U-shaped fluid pockets is defined by a pair of axially spaced fluid pockets and a supply groove. Each supply groove is formed in parallel relationship with the axis of the bearing member for fluidically communicating the pair of fluid pockets. Each of the first land portions is formed between the pair of fluid pockets for generating hydrodynamic pressure. Each fluid pocket is provided with two second land portions. Each of the supply grooves is located at a lower position in a gravitational direction in its associated U-shaped fluid pocket. The plurality of U-shaped fluid pockets are arranged symmetrically with respect to a vertical plane which includes the center of the bearing member.
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