Under-the-hub disk drive spin motor
US5157295A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Aug 5, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An under-the-hub spin motor for a disk drive includes a shaft having a first portion mounted to a support member an a second portion shaft having first and second bearings provided at the first and second ends thereof. A hub is supported by the first and second bearings and a disk having an inner diameter is mounted on the hub. A stator is provided on the support member so that the stator is outside of the Z-axis region between the bearings and a rotor is provided on the hub so that the rotor is concentric with the stator and so that a gap is defined between the stator and the rotor. The gap has a radius larger than the inner diameter of the disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.