Conical bearing apparatus having a dynamic pressure generating g

Details Conical bearing apparatus having a dynamic pressure generating g Conical bearing apparatus having a dynamic pressure generating g

1997-10-29

1999-01-05

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384112, F16C 1710

Patent

active

058554378

ABSTRACT:
A conical bearing apparatus having a dynamic pressure generating groove on the upper section of a conical bearing in order to increase a fluid pressure generated by the other dynamic pressure generating groove formed on the tapered surface of the conical bearing. As fluid generated by the two dynamic pressure generating grooves is completely used for raising the body of rotation, it is possible to raise the body of rotation in a short time. Accordingly, the friction between an optical polygon support and the upper section of the conical bearing is minimized and an abrasion of the optical polygon support or the conical bearing can be reduced. Furthermore, by reducing the overload of the conical bearing and optical polygon support, the stability in rotating the optical polygon is enhanced.

REFERENCES:
patent: 4043612 (1977-08-01), Orcutt
patent: 4828403 (1989-05-01), Schwartzman
patent: 4919547 (1990-04-01), Schwartzman

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