| 摘要 |
A scroll type fluid apparatus, such as a scroll vacuum pump or a scroll compressor, does not require lubrication by an external lubricating device. The scroll type fluid apparatus includes a casing, a stationary scroll member fixed to the casing, an orbiting scroll member cooperating with the stationary scroll member to form sealed chambers therebetween, and a restraining mechanism for restraining the orbiting scroll member from rotating about its own axis. The restraining mechanism employs prelubricated sealed bearings which support its component parts so that the component parts are in rolling contact with the corresponding portions of the orbiting scroll member, so that the component parts and the corresponding portions of the orbiting scroll member are not radially abraded, and portions of the scroll type fluid apparatus exposed to the fluid need not be lubricated by an external lubricating device.
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