Title :
Design of high-speed magnetic fluid bearing spindle motor
Author :
Qide Hang ; Chen, Shixin ; Winoto, S.H. ; Ong, Eng-Hong
Author_Institution :
Data Storage Inst., Singapore, Singapore
fDate :
7/1/2001 12:00:00 AM
Abstract :
A high-speed magnetic-fluid bearing spindle motor for hard disk drive is introduced. Some design challenges and considerations of its load capacity, stiffness, power consumption, lubricant leakage and shock resistant capability are addressed. The prototypes were fabricated and the test results of the prototypes are presented and discussed. The results show that the magnetic-fluid bearing spindle motor is very promising for use in future hard disk drives
Keywords :
disc drives; hard discs; machine bearings; magnetic bearings; magnetic fluids; small electric machines; design; hard disk drive; high-speed magnetic fluid bearing spindle motor; load capacity; lubricant leakage; power consumption; shock resistance; stiffness; Acoustic noise; Damping; Energy consumption; Hard disks; Hydrodynamics; Lubricants; Magnetic levitation; Magnetic liquids; Prototypes; Seals;
Journal_Title :
Magnetics, IEEE Transactions on
