| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum pump which can reduce manufacturing costs, prevent displacement to be generated during assembly, and exhibit substantially uniform performance.SOLUTION: In a vacuum pump 1 which includes a rotor 27 to be driven by an electric motor 10 and vanes 28 in a casing body 22, the casing body 22 is equipped with a cylinder liner 23 on which the rotor 27 and vanes 28 slide and a bearing 75 which supports an output shaft 12 of the electric motor 10, and mounted in an opening 11A in a bottomed cylindrical motor case body 11. |
