| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing of a compressor for a fuel cell which can assure lubricating performance stabilized at a long period of time in the rolling bearing used for the compressor for the fuel cell. <P>SOLUTION: In a thrust ball bearing 4 which is used for the scroll type compressor of the fuel cell and supports eccentricity rotational movement of a scroll member, the thrust ball bearing 4 is interposed between a swivel scroll and a rest frame and it is provided with inner and outer rings 6, 7 and a plurality of balls 8 housed to make it possible to roll between the inner and outer rings 6, 7 and simultaneously is formed on identical circumference with a plurality of rolled surfaces 6a, 7a which make doughnut-like on one end mutually opposed to the inner and outer rings 6, 7, respectively, and is formed on the rolled surfaces 6a, 7a and surface of the balls 8 with coating layers 9, 10, 11 comprising flexible metals such as Au, Ag, Sn, Cu. Thereby, it can assure successful lubricating performance at long period of time even though being operated in atmosphere of organic solvent or organic vapor. <P>COPYRIGHT: (C)2007,JPO&INPIT |
