Method of manufacturing a spherical annular seal

Details Method of manufacturing a spherical annular seal Method of manufacturing a spherical annular seal

1995-06-01

1997-04-01

Cuda, Irene

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

29505, 277100, B23P 1500

Patent

active

056154798

ABSTRACT:
A spherical annular seal having a through hole in a center thereof and a partially convex spherical surface portion on an outer surface thereof, wherein an inner peripheral surface of the spherical annular seal defining the through hole is reinforced by a reinforcing member formed of a metal mesh, and a uniform lubricating sliding layer of a lubricating composition containing 70 to 90 wt. % of boron nitride and 10 to 30 wt. % of alumina is formed on a surface of the partially convex spherical surface portion.

REFERENCES:
patent: 4601476 (1986-07-01), Usher et al.
patent: 4659091 (1987-04-01), Baasner et al.
patent: 4762330 (1988-08-01), Lonne et al.
patent: 4871181 (1989-10-01), Usher et al.
patent: 5040805 (1991-08-01), Ozora

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