By Topic

Effects of compliance of hydrodynamic thrust bearings in hard disk drives on disk vibration

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
C. -P. R. Ku ; Recording Media Group, Seagate Technol., Fremont, CA, USA

For cantilever-shaft design 2-disk hydrodynamic bearing spindle motors, the compliance of the thrust bearing has little effect on the radial operating vibration amplitudes which are the major contributor to the track misregistration in hard disk drives. At the low frequency range (<300 Hz), the compliance of the thrust bearing has great effect on the axial vibration amplitudes. However, the disk flexibility and/or disk clamping condition have more effects than the compliance of the thrust bearing on the axial operating vibration amplitudes at the frequency range of 300~800 Hz. Magnetic preload may contribute equivalent vibration amplitudes but consumes much less power than the hydrodynamic preload does

Published in:

IEEE Transactions on Magnetics  (Volume:33 ,  Issue: 5 )