What is pre-setting?

Pre-setting takes place during the manufacturing process. A Belleville disc spring is pre-set when it is momentarily flattened. The process reduces the original unloaded height of the spring, as a result of the residual tensile stresses.

Pre-set Belleville disc springs, typically, are used to maintain load or tension in bolted assemblies.

Pre-setting is not always necessary and must be specified at the time the order is placed. Pre-setting is one aspect of creating custom Bellevilles for your application. Our engineers can advise you on whether pre-setting is required for your application and help you determine the amount of pre-setting.