Nidec Corporation

Hosei Kudou

Hirofumi Takayama

Takashi Nishina

Masaaki Inagi

A gas is fed, so as to cause a gas flow to occur from a lower opening of a bearing hole of a sleevein an outward direction of an annular portionof a rotor hubvia a radial gapand an upper opening of the bearing hole, thereby lifting a rotor sectionIn a condition where the rotor sectionis lifted, the magnitude of run-out synchronized with the rotation of the rotor sectionis measured by using a displacement gaugeThen, based on the magnitude of run-out synchronized with the rotation, the run-out of the rotor sectionis adjusted.

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Kyoto, Japan

Hosei Kudou