Browse Prior Art Database

Compliant Air Bearing for Flexible Disk

IP.com Disclosure Number: IPCOM000080486D
Original Publication Date: 1973-Dec-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Steele, WE: AUTHOR

Abstract

A thin-flexible disk is made to look and act like a rigid disk, via an air bearing formed between two rotating disks. This allows contact recording at high-surface speeds with a minimum of wear to the recording surface and the head.

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Compliant Air Bearing for Flexible Disk

A thin-flexible disk is made to look and act like a rigid disk, via an air bearing formed between two rotating disks. This allows contact recording at high-surface speeds with a minimum of wear to the recording surface and the head.

This structure is made up of three parts: bearing disk 1, spacer 2 and flexible magnetic disk 3. For a single disk drive these disks would be mounted between flanges 4 and 5. Disk 3 and spacer 2 may be molded or glued as one part.

The slots 6 in disk 3 allow air to be pumped between disk 3 and disk 1. The inner diameter of slots 6 is equal to or slightly less than the diameter of spacer 2. This is to provide a mechanical opening between disk 1 and 6. At the inner diameter of slots 6 air can be pumped by centrifugal force through slots 6 in disk 1, to form an air bearing between disks 1 and 6.

By mounting a recording head 7, contact recording can be achieved on the magnetic side of the magnetic disk 3. This configuration permits high compliancy and stability, even with misalignment of the spindle relative to the head.

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