| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lubricant pump having a simple structure and high reliability. <P>SOLUTION: A vacuum pump is provided with a rolling bearing used for supporting a high speed rotation structure section, the lubricant pump including a rotor 4 having at least one pumping action generation structure, and a closed lubricant circulation circuit having the rolling bearing and the lubricant pump disposed therein. The rotor is rotatably supported on a hollow shaft 9 disposed in the lubricant circulation circuit. <P>COPYRIGHT: (C)2009,JPO&INPIT |
