Browse Prior Art Database

Solid-State Bearing for a Spindle Motor

IP.com Disclosure Number: IPCOM000116564D
Original Publication Date: 1995-Oct-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Fukudome, Y: AUTHOR [+4]

Abstract

Disclosed is a bearing which has solid state lublicant for a spindle motor. Fullerenes is one of the promising solid state lublicant, especially C60 and C70. It can enhance the durability and the reliability of air spindle motor for Hard Disk Drive (HDD) by coating the contact area.

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Solid-State Bearing for a Spindle Motor

      Disclosed is a bearing which has solid state lublicant for a
spindle motor.  Fullerenes is one of the promising solid state
lublicant, especially C60 and C70.  It can enhance the durability and
the reliability of air spindle motor for Hard Disk Drive (HDD) by
coating the contact area.

      Fig. 1 shows a normal spindle motor for HDD using ball bearing.
It has disadvantages for the shock.  Fig. 2 shows a sample of the
spindle motor using air bearing.  The spindle motor using air bearing
has disadvantages for the life, because of friction problem during
spining up and down.  The shaft and the bore of the spindle motor for
HDD are rubbed together.  It can enhance the life by overcoating the
surface of the shaft and/or the bore.

      It can also be available for an oil bearing spindle motor by
doping Fullerenes, as shown in Fig. 2.