Disk drive with fluid bearing, bearing plate and disk-moving mec

Details Disk drive with fluid bearing, bearing plate and disk-moving mec Disk drive with fluid bearing, bearing plate and disk-moving mec

1995-09-28

1996-08-06

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9701, 360102, G11B 17035, G11B 1732, G11B 2504

Patent

active

055439845

ABSTRACT:
A disk drive apparatus having a fluid bearing, an enclosure, a fixed shaft, a hub, a working fluid, spiral grooves, a disk, a head, and an axial-gap three-phase brushless motor. The shaft has two ends and a peripheral surface. The hub has a first inner surface opposing one end of the shaft and a second inner surface surrounding the peripheral surface of the shaft, and is designed to float with respect to the shaft by virtue of a fluid pressure. The working fluid is provided in a gap between the one end of the shaft and peripheral surface of the shaft, on the one hand, and the inner surfaces of a cup-shaped member, on the other hand. The spiral grooves are formed in at least one of the peripheral surface of the shaft and the first inner surface of the cup-shaped member. A bearing plate lies opposite the disk at a distance while stationary. When the disk moves, the distance between the disk and bearing plate decreases in order to generate fluid pressure.

REFERENCES:
patent: 4636891 (1987-01-01), Barski
patent: 4658944 (1987-04-01), Kogure et al.
patent: 5060101 (1991-10-01), Isomura
patent: 5182739 (1993-01-01), Kime et al.

Affiliated with

Also associated with

Rating

Disk drive with fluid bearing, bearing plate and disk-moving mec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Disk drive with fluid bearing, bearing plate and disk-moving mec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Disk drive with fluid bearing, bearing plate and disk-moving mec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2195838