A belleville washer is a type of spring shaped like a washer.
Belleville spring design guide.
It is the frusto conical shape that gives the washer its characteristic spring.
Preferred sizes for spring materials wire strip and bars.
In a bolted joint the spring is normally loaded at the upper inside edge by the nut or bolt head and the lower outside edge by the joint.
Although the disc spring has found a wider application during the last few decades it is still an old established machine component.
We are the largest belleville manufacturer in the world with customers in 67 countries.
This spring rate is usually very high allowing the spring to produce very large loads in a very small space.
The belleville name comes from the inventor julien belleville who in dunkerque france in 1867 patented a spring design which already contained the principle of the disc spring.
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Manufacturers also use a parameter called flat load or load to flat f w in their description of a belleville spring.
In a belleville washer the ratio of material thickness to rim width is held to about one in five.
The original inventor is not known but more than 130 years ago on 26 12 1861 to be precise julien francois belleville of dunkirk was granted french patent number 52399 for a spring design which already contained.
A belleville spring is a conical shaped disc that will deflect flatten at a given rate.
Belleville washers provide a very high spring force for short movement and have a high energy storage capacity.
Design equations of belleville washer springs premium membership required.
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Belleville washers additional design information.
We specialize in the design manufacture and distribution of high quality belleville disc springs servicing customers worldwide.
We offer these graph curves as part of our standard service.
Typical modulus of elasticity of spring materials used in torsion and tension.
Morrison s spring tables design reference premium membership required to view document book.
Stretches over 200 acres with a 88 000 square ft.
Belleville spring disc spring and conical compression washer are all names for the same type of spring.
This is the force required to push the spring into the flat position.
