DocumentCode
1467501
Title
Some design and prototyping issues on a 20000 rpm HDD spindle motor with a ferro-fluid bearing system
Author
Chen, Shi Xin ; De Zhang, Qi ; Chong, How Ching ; Komatsu, Terutoshi ; Kang, Cheng Hia
Author_Institution
Data Storage Inst., Nat. Univ. of Singapore, Singapore
Volume
37
Issue
2
fYear
2001
fDate
3/1/2001 12:00:00 AM
Firstpage
805
Lastpage
809
Abstract
A high-speed ferro-fluid bearing spindle motor for hard disk drive is introduced. Some design challenges and considerations on electrical motor, bearing system and spindle structure are addressed. The testing results of the prototypes are presented and discussed. The shown testing results of the prototypes indicate that the objective of developing a high-speed, high-performance, fluid-bearing spindle motor is fulfilled. It is a prospective spindle motor to be used in future hard disk drives
Keywords
disc drives; hard discs; machine bearings; magnetic bearings; magnetic fluids; small electric machines; ferrofluid bearing system; hard disk drive; spindle motor; Acoustic noise; Ball bearings; Disk recording; Hard disks; Hydrodynamics; Lubricants; Memory; Prototypes; Seals; Testing;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.917620
Filename
917620
Link To Document