What is the spring rate?

The spring rate is the amount of force associated with the deflection of a spring measured in lb/in or N/mm. Every spring has its own spring rate, depending on its geometry and material.

The formula to determine the load at a specific deflection uses Poisson’s ratio, Young’s modulus, as well as the outside and inside diameters, height, and thickness of the specific Belleville spring. Our engineers use these variables to determine the spring you need, based on your specific parameters.