Spindle motor having a hydrodynamic bearing system

Details Spindle motor having a hydrodynamic bearing system Spindle motor having a hydrodynamic bearing system

2005-03-29

2008-03-18

Tamai, Karl (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C384S107000, C384S112000

Reexamination Certificate

active

07345392

ABSTRACT:
The invention relates to a spindle motor having a hydrodynamic bearing system, particularly to drive platters in a hard disk drive, the platters being disposed on a rotor, and the bearing system being formed by a bearing sleeve arranged on a baseplate and a shaft rotatably supported in an opening in the bearing sleeve and at least one thrust plate connected to the shaft. A liquid lubricant is filled into a bearing gap formed between the shaft, the thrust plate and the bearing sleeve. The invention is characterized in that the thrust plate rests directly against the rotor and is accommodated in an annular recess in the bearing sleeve facing the rotor.

REFERENCES:
patent: 3503658 (1970-03-01), Remmers
patent: 5558445 (1996-09-01), Chen et al.
patent: 5623382 (1997-04-01), Moritan et al.
patent: 6126320 (2000-10-01), Ichiyama
patent: 6296390 (2001-10-01), Wolff et al.
patent: 6874940 (2005-04-01), Rahman et al.
patent: 6920013 (2005-07-01), Nishimura et al.
patent: 6921996 (2005-07-01), Parsoneault et al.
patent: 6962442 (2005-11-01), Braun
patent: 7056024 (2006-06-01), Weingord et al.
patent: 7073945 (2006-07-01), Aiello et al.
patent: 7095147 (2006-08-01), Aiello et al.
patent: 7218023 (2007-05-01), Hirose et al.
patent: 7224552 (2007-05-01), Herndon et al.
patent: 2002/0175577 (2002-11-01), Yoshitsugu et al.
patent: 2003/0174439 (2003-09-01), Kull
patent: 2003/0174637 (2003-09-01), Kull et al.
patent: 2003/0174914 (2003-09-01), Kull et al.
patent: 2003/0184175 (2003-10-01), Horiuchi et al.
patent: 2004/0012287 (2004-01-01), Kloeppel et al.
patent: 2004/0028301 (2004-02-01), Kull et al.
patent: 2004/0264819 (2004-12-01), Weingord et al.
patent: 2005/0006969 (2005-01-01), Kull
patent: 2005/0225187 (2005-10-01), Hafen et al.
patent: 2002147440 (2002-05-01), None
patent: 2003-74543 (2003-03-01), None
patent: 2003092867 (2003-03-01), None
patent: 2003092868 (2003-03-01), None
patent: 2004011897 (2004-01-01), None

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3964991