Spindle motor having a fluid dynamic bearing system

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07570456

ABSTRACT:
The invention relates to a spindle motor having a fluid dynamic bearing system and comprises a rotor having a cylindrical shaft, a first bearing disk disposed at one end of the shaft and a second bearing disk that is disposed on the shaft at a spacing to the first bearing disk in such a way that an annular disk-shaped space is formed between the two bearing disks. A stator is provided that has an annular disk-shaped component which is disposed in the annular disk-shaped space formed by the rotor, the respective opposing bearing surfaces of the stator and of the rotor being separated from one another by a bearing gap filled with a fluid medium. The bearing system comprises at least one radial bearing formed between the outside circumference of the shaft and the inside circumference of the annular disk-shaped component and two axial bearings formed by the two end faces of the annular disk-shaped component and the respective opposing end faces of the bearing disks, an electromagnetic drive unit being provided to drive the rotor.

REFERENCES:
patent: 6005748 (1999-12-01), Heine et al.
patent: 6362932 (2002-03-01), Bodmer et al.
patent: 2006/0043808 (2006-03-01), Son et al.
patent: 2006/0255672 (2006-11-01), Flores et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Spindle motor having a fluid dynamic bearing system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spindle motor having a fluid dynamic bearing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spindle motor having a fluid dynamic bearing system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4089835

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.