Stacking Disc Springs

SPEC® Spring Washers are both components and modular systems, as they can be used individually or as a set of parts. ASRaymond offers a wide variety of Disc Springs, including Belleville Washers, DIN 2093 Disc Springs and Clover®Dome Spring Washers. Stacking parts allows for an infinite number of force-deflection curves.

In general, there are two directions to stack parts (although both can be combined). Parts stacked in series are placed in alternating orientations and offer N-times the deflection for the same load as one part, where N is the number of parts in the stack (for example 3X the deflection when three springs are stacked). Parts stacked in parallel are placed in the same orientation and offer N-times the force for the same deflection, where N is the number of parts in the stack.

Shown below are the comparative force and deflection graphs for the alternative methods of stacking:

Among many industries, manufacturers need to package higher performance into smaller spaces. Traditional spring solutions offer lower displacement in relation to size, constraining designs. Stack solutions from ASRaymond offer higher displacement and non-traditional force to deflection profiles to achieve the desired performance. ASRaymond’s global team of engineers can help to define a complete stack for an OEM application.

Additionally, ASRaymond offers a variety of flat springs that can be stacked in this manner. Visit the Spring Washer product section to learn more about these products.