DISC SPRING :-

Descriptions :- Disc Spring are conical shaped annular discs which are capable of being loaded in the axial direction. Disc springs may be subjected either to constant or to cyclic loading.

  

In application disc springs can be used as single discs, or arranged in stacks. The concept of a disc springs dates from the 1860's when a patent was filed by a M.Belleville, whose name is frequently used to describe this type of component. Modern disc spring have, however, moved away from Belleville's original design, in which the material was relatively thick with only a small amount of conical 'dish'.

The real breakthrough in the development of the disc spring came in 1936 when Almen and Laszlo published their A.S.M.E. paper "The Uniform Section Disc Spring".

DIN 2093 - Machined Edges

This presented a more usable design procedure than had previously been available, and in addition made it possible to derive the characteristics of disc springs with relatively high cone heights.

The usefulness of disc springs has been greatly enhanced by the development of standardised metric and imperial ranges in Europe and U.S.A. in carbon and alloy spring steels and, to a limited extent, stainless steel.

In Europe the predominant influence has been the standardised size ramge based on the German DIN 2093 specification.

Standard Range- Pressed Edges

Disc Springs offer a well developed solution to a great many engineering problems through a unique combination of high force in a small space. Disc springs also offer considerable scope for further exploitation due to their potential for unusual non-linear force/deflection charecteristics.

Whilst disc springs may not always be used as an alternative to helical coil springs, in may instances they are interchangeable and if considered at the initial stages of design disc springs can be employed to significant economic advantage.

Locking Washers DIN 6796

Advantages of Disc Springs:-

  • Very high force for short movement
  • Short axial length when installed.
  • Non-linear spring rates are possible : e.g. regressive, zero or negative rates.
  • Combination use as a modular spring element.
  • High energy storage capacity.
  • Fail safe capability with combination stacks of disc springs.
  • Even annular loading.
  • Symmetrical annular component with good balance, ideal for rotating applications.
  • Non-tangle and this ideal for bulk handling and automatic assembly.
  Back  
 
©www.rajfas.com, Rajasthan Fasteners Pvt. Ltd. 2005-06, All rights reserved.
Design by: Er. Somendra Harsh & Developed by: Cyber Ash Softech Pvt. Ltd.
Contact Us Home Quality Contact Us Products About Us Home