Cylindrical dynamic pressure bearing formed of polyphenylene sul

Details Cylindrical dynamic pressure bearing formed of polyphenylene sul Cylindrical dynamic pressure bearing formed of polyphenylene sul

1994-11-21

1995-12-05

Hannon, Thomas R.

Bearings

Rotary bearing

Fluid bearing

384114, F16C 3206

Patent

active

054722837

ABSTRACT:
A dynamic pressure bearing has a cylindrical configuration and includes dynamic pressure generating grooves on its inner peripheral surface. The bearing which is injection-molded is made of a material consisting principally of a polyphenylene sulfide resin including glass fibers. Furthermore, the bearing has an outside diameter R and an inside diameter r set such that a ratio R/r of the outside diameter R to the inside diameter r falls within a range of 1.2.ltoreq.R/r.ltoreq.2.5. The bearing also has an axial length L satisfying L.ltoreq.3r.

REFERENCES:
patent: 3467449 (1969-09-01), Muijderman
patent: 4774749 (1988-10-01), Furumura
patent: 4798480 (1989-01-01), Van Beek
patent: 4934836 (1990-06-01), Tanaka et al.
patent: 5054938 (1991-10-01), Ide
patent: 5066144 (1991-11-01), Ide
patent: 5114245 (1992-05-01), Tanaka et al.
patent: 5356226 (1994-10-01), Onishi et al.

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