Hydrodynamic bearing, spindle motor and hard disk drive

Details Hydrodynamic bearing, spindle motor and hard disk drive Hydrodynamic bearing, spindle motor and hard disk drive

2005-09-06

2005-09-06

Hannon, Thomas R. (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

C384S107000, C384S114000, C384S121000

Reexamination Certificate

active

06939046

ABSTRACT:
A hydrodynamic bearing having a shaft, which is fixedly connected at one end to a rotating component, and a bearing sleeve, which encompasses the shaft at its other free end with a slight clearance. The sleeve and the shaft form a concentric bearing gap. The shaft and/or the bearing sleeve is provided with at least one groove pattern which forms at least one radial hydrodynamic bearing. A volume equalizing cavity and at least one connecting passage connecting the bearing gap with the volume equalizing cavity extend radially outwards at an angle to the bearing gap.

REFERENCES:
patent: 4348065 (1982-09-01), Yoshioka et al.
patent: 5667309 (1997-09-01), Nose
patent: 5993066 (1999-11-01), Leuthold et al.
patent: 6176618 (2001-01-01), Kawawada et al.
patent: 6378209 (2002-04-01), Gomyo et al.
patent: 6717310 (2004-04-01), Yoshikawa et al.
patent: 6789992 (2004-09-01), Horng et al.

Affiliated with

Also associated with

Rating

Hydrodynamic bearing, spindle motor and hard disk drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrodynamic bearing, spindle motor and hard disk drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodynamic bearing, spindle motor and hard disk drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3436873