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Extended-Arm Rotary Actuator for Magnetic Recording Disk Drive

IP.com Disclosure Number: IPCOM000036876D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29

Publishing Venue

IBM

Related People

Authors:
Sohn, WJ [+details]

Abstract

Disclosed is an extended-arm rotary actuator which has a minimized skew-angle variation and a minimized angle of rotation for a complete stroke. This actuator is therefore compatible with sliders and recording heads used in magnetic recording disk drives which prefer low skew angles. Furthermore, the reduced angle of rotation of the arm partially compensates for the increased moment of inertia so that low access times can be achieved. The minimized angle of rotation allows for the design of a more compact voice coil motor which facilitates the design of disk drives with high volumetric density.