Patent · US Active

Spindle motor for driving a hard disk drive

US8699181B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Minebea Co., Ltd. · JP

Inventors

Joerg Hoffmann · Mettlach, DE
Olaf Winterhalter · Epfendorf, DE
Markus Loehr · Brigachtal, DE

Key dates

Filing date	Dec 12, 2011
Grant date	Apr 15, 2014
Priority date	—
Expiry date	Oct 7, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG11B19/2036
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a spindle motor, preferably for driving a hard disk drive, having a stationary motor component and a rotatable motor component that is rotatably supported with respect to the stationary motor component and that is driven by an electromagnetic drive system, at least one storage disk being fixed to the rotatable motor component using some means of mounting and fastening. According to the invention, at least parts of the rotatable motor component and at least parts of the means of mounting and fastening have a wear resistant surface coating or are subjected to a wear resistant surface treatment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.