Spindel motor for a disc drive
US6081057A · kind A · utility
19Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1999 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Jul 8, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2370/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a spindle motor for a disc drive in which a rotatable body having a disc mounted thereon is rotatively driven by a motor, the rotatable body is rotatably supported on a support member through a ball bearing and a hydrodynamic fluid bearing, and a preload equal to or greater than an axial load of 1N is imparted to the ball bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.