Design and Technical Support. Belleville springs can be stacked in a variety of ways. Single, one spring Parallel, all springs stacked the same way Series, all springs stacked opposing each other Parallel-Series, a combination of parallel and series A single Belleville spring has a specific load and deflection. Two springs stacked in parallel doubles the load of a single spring with no increase in deflection.
Two springs stacked in series doubles the deflection of a spring with no increase in load. The parallel-series combination as shown below results in the load of two springs and the deflection of two springs. Installation of Belleville Springs Belleville springs must be utlized correctly in order to maximize their benefit. Group 2 — This range applies to disc spring washers with material thickness from 1.
Group 3 — This range applies to disc spring washers with material thickness over 6mm through 14mm. A single Belleville Washer has a specific load for a given deflection.
Two washers stacked in parallel will yield double the load of a single washer for the same deflection; three washers will yield triple the load; four washers will yield four times the load, etc. Alternatively, two washers stacked in series will yield double the deflection of single washer for the same load; three washers will yield triple the deflection; four washers will yield four times the deflection, etc.
Various series-parallel combinations therefore can provide a wide variety of combined results of load versus deflection for the stack. Consequently, depending upon the application, the designer can:. The Load Deflection Chart can be used to approximate intermediate loads. Belleville Washers, Disc Springs.
DIN Belleville Disc Washer Series designs are classified into three groups based on the material thickness: Group 1 — This range applies to disc spring washers with material thickness less than 1. Parallel: All washers stacked the same way to increase load. Series: All washers stacked opposite each other to increase deflection. Additional load flexibility can be achieved by stacking Belleville Washers in various configurations.
As shown in the diagrams above, Belleville Washers can be used in four different ways. At the same time, the Belleville washer exerts an equal amount of force against the object. Depending on the application, multiple Belleville washers can be used to create greater resistance against heavy loads. Rather than using a single Belleville washer, you can use two or three Belleville washers. The stack of Belleville washers creates multiple springs, each of which acts against the object.
In addition to handling heavy loads, Belleville washers are able to absorb vibrations. Many vehicles, for example, use Belleville washers for this reason.
Belleville washers are suitable for all applications. But their canonical shape and spring-like characteristics make them ideal for handling heavy loads and absorbing vibrations. If you use leveling mounts, you might be wondering when to replace them.
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