Other

Nidec Corporation

Kimihiko Hajota

Natsuhiko Mori

Tsugito Nakazeki

Katsutoshi Hamada

Yoshiki Okayama

Akira Kagata

Hironori Itsusaki

In a manufacturing method, energy beam heat is radiated to a target area of the motor assembly which is used for a storage disk drive. By radiating energy beam thereto, a portion of the motor assembly is deformed in a non-contact manner, thus, without being affected by elastic recovery of a portion of the motor assembly to be deformed, the machining accuracy of the motor assembly is adjusted in a precise manner.

Motor assembly and method of manufacturing thereof

In the dynamic bearing device, a chamfer having a larger percentage of surface openings is continuous to the outer diameter side of a lower end surface of a bearing member, which constitutes a thrust bearing gap of a first thrust bearing part. A lubricating oil in pores of the bearing member is supplied to a gap portion through the surface openings of the chamfer, so that the gap portion can be kept at a positive pressure without becoming a negative pressure.

Dynamic bearing device and motor having the same

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Kyoto, Japan

Kimihiko Hajota