Disc springs are less known than other types of springs. A disc spring concerns a formed disc with a central hole which enables the spring to be placed over an axle.
The disc can, due to the formed shape, compensate a movement in the axial direction.
By stacking several disc springs on top of each other in the right way, great forces can be absorbed with a minor total stroke length.
We are very flexible concerning the assortment of disc springs since we can engineer, weld, fold, press, stamp, mill and turn at our location.
Applications
Disc springs are used when we speak of small spaces in which great forces should be captured. They are for example used to secure bolts with pre-tensioning. Disc springs are also applied in mechanical couplings and brake systems.
Materials
Common materials used for disc springs are 1.1231 (C67S/CK67) and 1.8159 (51CrV4). Besides, we can use other materials, such as 1.4310 (Stainless Steel – spring steel/SS302). For more information, take a look at our page; Material choice.
When we speak of disc springs, often one of the following finishing treatments is chosen: shot polishing, phosphating, black oxidizing and or oiling.
Characteristics
By stacking disc springs in different ways on each other and by taking the choice of material into account, it is possible to create pillars of disc springs of different spring characteristics and stroke lengths. This makes it possible to realize linear, progressive or digressive spring packages. The opportunities are almost endless.
It is important to make sure the disc spring has enough space concerning both, the inside and outside diameter, because these can change when being pressed. The inside diameter will become smaller and the outside diameter will become bigger. A big advantage of the geometry of a pillar of disc springs, is the absolute concentric transfer of power. The fact that a disc spring consists of a long-life span with dynamic loads is a strong feature. Of course it is a condition that the spring package is dimensioned in the appropriate way. In order to get to the desired technical result, our engineering department can help you with the design of a pillar of a disc springs or a disc spring. The norms DIN 2092 and DIN 2093 are used at spring-factory De Spiraal in order to calculate and produce the disc springs.
