Fluid bearing seal and support structure

Details Fluid bearing seal and support structure Fluid bearing seal and support structure

1997-12-10

1999-09-28

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384124, F16C 1710

Patent

active

059575891

ABSTRACT:
A bearing structure for a spindle motor is disclosed. The bearing structure provides a fluid bearing seal and support structure that may simultaneously addresses the problems of preventing oil leakage, of maintaining the bearing integrity under shock, of reducing oil evaporation and of minimizing distortion of the active bearing surface. The bearing structure includes a thrust plate coupled to a shaft and a bearing plate and load plate coupled to a sleeve, wherein the load plate urges the bearing plate towards the thrust plate, and wherein an adhesive is interposed between the load plate and the thrust plate. The adhesive may be an UV epoxy. The sleeve is operatively coupled to a stator, and the stator rotates the sleeve upon receiving a drive signal. The bearing further includes a diffusion barrier disposed between the sleeve and the stator. A second diffusion barrier is disposed between the load plate and the shaft. The bearing structure may also include an O-ring disposed above the bearing plate for sealing a gap between the bearing plate and the sleeve.

REFERENCES:
patent: 4332428 (1982-06-01), Maruyama
patent: 4694213 (1987-09-01), Gowda et al.
patent: 4892418 (1990-01-01), Asada et al.
patent: 4998033 (1991-03-01), Hisabe et al.
patent: 5089732 (1992-02-01), Konno et al.
patent: 5112141 (1992-05-01), Asada et al.
patent: 5142173 (1992-08-01), Konno et al.
patent: 5427456 (1995-06-01), Hensel
patent: 5433529 (1995-07-01), Hensel
patent: 5490021 (1996-02-01), Muller et al.
patent: 5516212 (1996-05-01), Titcomb
patent: 5533811 (1996-07-01), Polch et al.
patent: 5536088 (1996-07-01), Cheever et al.
patent: 5559382 (1996-09-01), Oku et al.
patent: 5634724 (1997-06-01), Zang et al.

Affiliated with

Also associated with

Rating

Fluid bearing seal and support structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid bearing seal and support structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid bearing seal and support structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-695045