Disc Spring Stacks

Disc Spring Stacks
The required various load/deflection characteristics of Belleville disc
springs can be obtained from the various stacking combinations. The stack
combination methods and load&deflection relation as the table below. Disc
spring stacks, also known as Belleville washer stacks, are assemblies created
by combining multiple disc springs in parallel, in series, or in a mixed
configuration. Stacking disc springs allows engineers to achieve customized
load–deflection characteristics that cannot be obtained with a single spring.
Whether you require high load capacity, greater deflection, or a balanced
performance, disc spring stacks provide an efficient and compact solution.

What Are Disc Spring Stacks?
A disc spring stack is formed by arranging two or more disc springs together.
Depending on the stacking arrangement, the overall spring force, deflection,
and stiffness of the assembly can be adjusted. This flexibility makes disc
spring stacks ideal for demanding applications where precise load management,
space optimization, and long service life are critical.
Advantages of disc springs stack:
1. Provide specific load/deflection data for the whole set of disc springs
stack. (HEGONG SPRING®’s load testing machines can measure loads up to
4000KN)
2. Small load tolerance
3. Easier to install
Disc Spring Stack Calculation & Design Considerations
Designing disc spring stacks requires knowledge of load–deflection
characteristics and the effects of friction between contacting surfaces.
Parallel Stack Calculation:
Total load = single spring load × number of springs in parallel.
Series Stack Calculation:
Total deflection = single spring deflection × number of springs in series.
Combination Stacks:
Combine both formulas to achieve the desired spring curve.

Additional considerations:
Friction between springs in parallel can reduce overall efficiency.
Lubrication is recommended to reduce wear and improve consistency.
Excessively large stacks may increase assembly complexity and cost.
More: https://www.discspringsmfg.com/products/

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