| 摘要 |
<P>PROBLEM TO BE SOLVED: To sufficiently prevent grease filled in grease-filled bearings 15, 25 from being drawn while sufficiently improving an air compressor 1. Ž<P>SOLUTION: A first annular groove 43 is formed near an inner edge of a non-contact seal 15a of a first bearing 15 on an end face of a first rotor body 13, and a second annular groove 45 is formed near an inner edge of a non-contact seal 25a of a second bearing 25 on an end face of a second rotor body 23. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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