| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a compressor or a vacuum machine capable of suppressing looseness in the axial direction of a bearing and a rotational shaft at low costs.SOLUTION: A compressor or a vacuum machine includes: a cylinder and a crank case; a piston arranged in the cylinder and the crank case; a rotational shaft connected to the piston; a bearing fixed to the crank case and supporting the rotational shaft; and a motor rotating the rotational shaft. The motor contains a stator, and a rotor fixed to the rotational shaft. The magnetic center of the stator and rotor is deviated in the axial direction of the rotational shaft.</p> |
