Head drum assembly having an oilless bearing designed to facilit

Details Head drum assembly having an oilless bearing designed to facilit Head drum assembly having an oilless bearing designed to facilit

1998-06-23

1999-11-16

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 552

Patent

active

059868554

ABSTRACT:
A head drum assembly is provided with a pair of oilless bearings installed within a bore of a stationary drum. Each of the oilless bearings is of a general donut-shaped configuration. A cross section thereof is provided with an external circular shape portion, an upper and a lower bearing surfaces. The upper and the lower bearing surfaces define an inner bore of the oilless bearing into which a rotating shaft are received, and slantly extend from the pair of planar portions, respectively, meeting at an apex in equal angles.

REFERENCES:
patent: 5581425 (1996-12-01), Choi
patent: 5675457 (1997-10-01), Kim
patent: 5709480 (1998-01-01), Hong

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