Fluid dynamic bearing motor having molded plastic

Details Fluid dynamic bearing motor having molded plastic Fluid dynamic bearing motor having molded plastic

2007-10-17

2011-10-11

Hannon, Thomas R (Department: 3656)

Bearings

Rotary bearing

Fluid bearing

C384S107000, C384S110000

Reexamination Certificate

active

08033731

ABSTRACT:
A fluid dynamic bearing motor and method are described, wherein motor components, including complex shaped motor components, are molded of plastic. The molding ensures form control and dimensional control thereby accomplishing design requirements, and eliminating or reducing component costs and component machining. The mold can be shaped to form various motor geometries, thereby eliminating the need for multiple component assembly and related assembly costs. In an aspect, a plastic integral motor hub is formed by injection molding. Alternatively, a plastic motor hub is affixed to a metal sleeve. In another aspect, fluid containment structures are molded into the motor component, reducing the number of components as compared with machined metal components. In a further aspect, bearing structures such as grooves are molded into the motor component, thereby eliminating processes such as electrochemical machining. In yet a further aspect, a plastic hub faces a thrustplate, reducing expensive sleeve machining.

REFERENCES:
patent: 5363003 (1994-11-01), Harada et al.
patent: RE38178 (2003-07-01), Elsasser et al.
patent: 6756715 (2004-06-01), Hirose et al.
patent: 6898050 (2005-05-01), Gredinberg et al.
patent: 2002/0018603 (2002-02-01), Narita
patent: 2004/0005101 (2004-01-01), Grantz

Affiliated with

Also associated with

Rating

Fluid dynamic bearing motor having molded plastic 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 dynamic bearing motor having molded plastic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid dynamic bearing motor having molded plastic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4273050