Slider bearing design for near contact magnetic recording

Details Slider bearing design for near contact magnetic recording Slider bearing design for near contact magnetic recording

1992-10-20

1994-01-11

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 560

Patent

active

052787117

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.

REFERENCES:
patent: 3754104 (1973-08-01), Piper
patent: 4757402 (1988-07-01), Mo
patent: 5200867 (1993-04-01), Albrecht

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