Self acting gas bearing apparatus

Details Self acting gas bearing apparatus Self acting gas bearing apparatus

1989-10-20

1991-05-28

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384100, 384107, 384473, F16C 3200

Patent

active

050188810

ABSTRACT:
A self acting gas bearing apparatus comprising a cantilevered shaft, a sleeve that is fitted to the shaft so as to be freely rotatable around the shaft, and a lid that is fixed onto one end of the sleeve, wherein one or more intake holes having filters thereon are provided on the sleeve or lid in the vicinity of the free end side of the shaft, and dynamic pressure generating grooves that force gas from the intake holes toward the fixed end side of the shaft are provided on the outer surface of the shaft or the inner surface of the sleeve, whereby fine particles are prevented from entering into a bearing clearance between the shaft and the sleeve, thereby ensuring a smooth rotation of the sleeve around the shaft without coming into contact with the shaft.

REFERENCES:
patent: 4696584 (1987-09-01), Tielemans
patent: 4772136 (1988-09-01), Carter
patent: 4805972 (1989-02-01), Tanaka et al.

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