Disk storage drive having a rotor mounted with a plurality of bearing

US5394283A · kind A · utility

Assignee

• Papst Licensing GmbH · DE

Inventors

• Helmut Hans · St. Georgen, DE
• Jurgen Oelsch · Bad Neustadt an der Saale, DE

Key dates

• Filing date: Nov 12, 1992
• Grant date: Feb 28, 1995
• Expiry date: Nov 12, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2370/12
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A disk memory drive is presented having a stator and a rotor that is equipped with a centered hub, which hub has a surface onto which one or several hard disks are mountable. The bearing system between rotor and stator comprises two ball-bearings. The first ball-bearing is mounted between the rotor and stator a first distance from a rotational axis, and the second ball-bearing is mounted between the rotor and stator a second distance from the rotational axis, wherein the second distance is greater than the first distance.