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Belleville spring design guide.
A belleville washer is a type of spring shaped like a washer.
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.
Belleville spring disc spring and conical compression washer are all names for the same type of spring.
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.
Belleville washers additional design information.
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.
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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We offer these graph curves as part of our standard service.
Design equations of belleville washer springs premium membership required.
Although the disc spring has found a wider application during the last few decades it is still an old established machine component.
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It is the frusto conical shape that gives the washer its characteristic spring.
This spring rate is usually very high allowing the spring to produce very large loads in a very small space.
Preferred sizes for spring materials wire strip and bars.
View our specification guide.
A beginner s guide to belleville washers nov 28 2016 disc springs blog 0 comments some people who may need to use compression spring applications that require high load may not be able to distinguish which kind of washers that would best suit for their needs.
Whether you are in the design phase or the purchasing phase our engineering staff can utilize our software programs to produce charts for any belleville spring design.
Belleville washers provide a very high spring force for short movement and have a high energy storage capacity.
We specialize in the design manufacture and distribution of high quality belleville disc springs servicing customers worldwide.
A belleville spring is a conical shaped disc that will deflect flatten at a given rate.
