Gas bearing body

Details Gas bearing body Gas bearing body

1987-09-23

1988-07-26

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384114, 384282, 3849071, 384913, F16C 3206

Patent

active

047596449

ABSTRACT:
The invention relates to a journal gas bearing body which is formed with a cylindrical bore to rotatably support therein the journal part of a shaft and gas introducing holes radially opening into the cylindrical bore. The bearing body is made of a metal, and only in opposite endmost sections of the cylindrical bore the cylindrical inner surface defining the bore is provided by a very hard and wear resistant material, which is either a ceramic or a cemented carbide. It is convenient to provide the hard inner surface in each of said endmost sections by insertion of a hollow cylindrical bushing formed of a ceramic or a cemented carbide. The gas introducing holes are all located lengthwise inward of said endmost sections to avoid boring through the ceramic or cemented carbide layer. Accordingly the bearing body can easily be manufactured without significant increase in the working cost.

REFERENCES:
patent: 3129037 (1964-04-01), Ott
patent: 3385641 (1968-05-01), Foglia
patent: 3726572 (1973-04-01), Beardmore
patent: 4169637 (1979-10-01), Voitas

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