Belleville spring

Details Belleville spring Belleville spring

1974-08-23

1976-06-22

Marbert, James B.

Spring devices

Bendable along flat surface

Ring or annular spider

F16F 134

Patent

active

039647374

ABSTRACT:
A washer-type spring, commonly called a Belleville spring, which has an improved fatigue life and residual compressive stresses resulting from the creation of a carbon gradient through the spring thickness. This improved spring is formed from a plain carbon or low alloy steel which, after blanking, cutting and forming, is heated to a temperature above the austenitizing temperature in a carbon-rich atmosphere, held at this temperature until suitably carburized, and then quenched.

REFERENCES:
patent: 3259383 (1966-07-01), Johnson et al.
patent: 3774896 (1973-11-01), Rode
patent: 3901739 (1975-08-01), Mandoki

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