Thrust bearing with spiral grooved face

Details Thrust bearing with spiral grooved face Thrust bearing with spiral grooved face

1990-06-18

1991-12-31

Footland, lenard A.

Bearings

Rotary bearing

Plain bearing

384123, 384902, 3849071, 384913, F16C 1708

Patent

active

050767160

ABSTRACT:
A thrust bearing having a spiral element and a flat element is provided wherein bothy elements are arranged so as to be rotatable relative to each other and the spiral element is made of ceramic having a pattern of spiral grooves on the surface thereof opposing the flat element. The spiral grooves are formed by a shot-blasting process applied through a resin mask having a spiral pattern, the depth of the grooves being kept within the range between 3 .mu.m and 50 .mu.m.

REFERENCES:
patent: 3439962 (1969-07-01), Gothberg
patent: 3497273 (1970-02-01), Muijderman et al.
patent: 3591243 (1971-07-01), Kaippenberg et al.
patent: 3663074 (1972-05-01), Fernlund
patent: 3883314 (1975-05-01), Schnyder
patent: 4213659 (1980-07-01), Tielemans et al.
patent: 4315359 (1982-02-01), Gray
patent: 4380355 (1983-04-01), Beardmore
patent: 4410285 (1983-10-01), Strasset et al.
patent: 4808014 (1989-02-01), Ueda et al.
Asahi Kasei Pamphlet #1, Printing Plate System, APR Process for Producing Printing Plate.
Asahi Kasei Pamphlet #2, APR ASA System.

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