Analysis of non-repeatable radial vibration of magnetic disk spindles.

Ono, Kyosuke; Saiki, Naoto; Sanada, Y.; Kumano, Akihiko

doi:10.2493/jjspe.55.914

Cited by 4 publications

(1 citation statement)

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“…The bearing system performance of the spin stack in HDD plays a key role to sustain proper TMR budget. Presently, the conventional HDDs normally use fluid dynamic bearings (FDB) in their spindle system and it is pretty effective to reduce runouts [2].…”

Section: Introductionmentioning

confidence: 99%

Nonsymmetric Groove Pattern Design for Precise Micro-Spindles

Lee

Koo

et al. 2006

KEM

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As the fluid dynamic bearing spindles are to be actively adopted to various small form factor mobile applications, mechanical specifications for the motors have been aggressively changed to pursue the fierce information technology sector market trend. One of the major technological challenges for the spindles to be successfully employed in the applications is the reduction of power consumption since the most of the mobile applications operate with a limited power source at relatively lower voltage. Recognizing implication of the power consumption that of course affects stiffness of the spindle, few of options for mechanical designers are available but either lowering rotational speed or adopting thinner lubricant. In the present work, a novel design solution for alleviating side effect of the lower stiffness spindle is introduced and verified.

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Section: Introductionmentioning

confidence: 99%