Near contact magnetic recording using a liquid lubricant bearing

Details Near contact magnetic recording using a liquid lubricant bearing Near contact magnetic recording using a liquid lubricant bearing

1991-04-23

1998-04-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360103, G11B 560

Patent

active

057424497

ABSTRACT:
A rotating magnetic storage device is shown wherein the transducer and media are separated during operation by a thin film of low viscosity liquid lubricant that is recirculated from a reservoir within the head-media enclosure. Lubricant recirculation can be effected by capillary action using a wick, mechanical pumping and metering or distillation techniques. As compared to devices using air bearing separation, the transducer carrying slider has very small bearing surfaces which may be in the form of narrow rails or small depending foot elements. This enables fly heights of 2 microinches using a film of one micron thickness.

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