| 摘要 |
PROBLEM TO BE SOLVED: To mount a foil part on a bearing member while positioning the foil part to retain it. SOLUTION: A gas dynamic bearing consists of the bearing member 1 on which a shaft 2 is mounted, a rotary pressure receiving part 3 provided on the shaft 2, and the foil part 4 provided therebetween. Herein, fins 51, 61 to be supported by the bearing member 1 are provided at one end portions of an under foil 5 and an upper foil 6 constituting the foil part 4. The fins 51, 61 have fin bodies 511, 611 bent toward the bearing member 1, and engaging portions 512, 612 bent further from the protruded ends of the fin bodies 511, 611. In the side of the bearing member 1, a locking hole 1x is provided which has a grooved portion 1x1 for storing the fin bodies 511, 611 and an engaged portion 1x2 extending from the front end of the grooved portion 1x1 for storing the engaging portions 512, 612. COPYRIGHT: (C)2009,JPO&INPIT
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