Shaft and radially sealing ring with cold flexed seal disk and a

Details Shaft and radially sealing ring with cold flexed seal disk and a Shaft and radially sealing ring with cold flexed seal disk and a

1985-09-12

1987-02-24

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 9, F16J 1532

Patent

active

046452150

ABSTRACT:
A radially-sealing ring has a sealing element of a non-elastomeric plastic, preferably of PTFE, planar, annular disk having plane-parallel surfaces held at its outer circumference in a stiffening ring and cold flexed in the axial direction to form a cuff at its inner circumference which engages the shaft with bias. The disk has a thickness of from 0.3 to 0.8 mm and an inside diameter approximately 1.5 to 7 times its thickness less than the diameter of the shaft. The distance between the shaft and the line about stiffening ring where the disk is held is 2 to 7 times as great as the thickness of the disk. The radially-sealing ring is preferably for sealing the crankshaft of a two-cycle engine.

REFERENCES:
patent: 3275331 (1966-09-01), Mastrobattista et al.
patent: 3511512 (1970-05-01), Wheelock
patent: 3857156 (1974-12-01), Clark
patent: 4194748 (1980-03-01), Forch et al.
patent: 4283064 (1981-08-01), Staab et al.
patent: 4350351 (1982-09-01), Martin
patent: 4451050 (1984-05-01), Repella
patent: 4497496 (1985-02-01), Repella
patent: 4522411 (1985-06-01), Burgan

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