SPINDLE MOTOR FOR DRIVING MAGNETIC DISK

PURPOSE:To suppress nonrepeatitive run out (NRRO) of a magnetic disk by improving the perpendicularity of a ball bearing and the rigidity of an axis in a fixed axis type inhub motor. CONSTITUTION:A frange part 7 is integrated with the axis 2 of a rotary axis type inhub motor engaging a bracket 1 wit...

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Bibliographic Details
Main Authors OKADA TAKAAKI, KAWAMURA NORIO
Format Patent
LanguageEnglish
Published 19.02.1993
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:PURPOSE:To suppress nonrepeatitive run out (NRRO) of a magnetic disk by improving the perpendicularity of a ball bearing and the rigidity of an axis in a fixed axis type inhub motor. CONSTITUTION:A frange part 7 is integrated with the axis 2 of a rotary axis type inhub motor engaging a bracket 1 with the axis 2 and the bracket 1 is engaged then the abutting joint of the ball bearings 6a is insured. The rigidity of the axis 2 to the bracket 1 is increased and the NRRO is suppressed then recording density is improved.
Bibliography:Application Number: JP19910196904