Browse Prior Art Database

Air Bearing

IP.com Disclosure Number: IPCOM000097207D
Original Publication Date: 1962-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 25K

Publishing Venue

IBM

Related People

Hopkins, WG: AUTHOR [+2]

Abstract

The air-lubricated, slider bearing supports a magnetic transducer in proximity to a recording disk.

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Air Bearing

The air-lubricated, slider bearing supports a magnetic transducer in proximity to a recording disk.

A transducer supporting slider 1 is provided with one or more vents 2 and 3. These are located symmetrically about the roll axis and forward of the pitch axis. The vents bleed off a portion of the lubricating film carried by the rotating disk 4. This reduces the film thickness and, consequently, the slider to disk spacing, while increasing the stiffness of the bearing.

The angle of attack of the slider is controlled by the positioning of the vents ahead of the pitch axis. This reduces the sensitivity of the slider to changes in surface velocity. The rates of change of film thickness and angle of attack with variations in surface velocity decrease as the angle of attack is reduced. Thus, the vents permit nearly uniform slider-to-disk spacing over the effective radius of the disk.

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