Disc Springs
Disc springs are rings with a slightly conical shape. This unique design gives the disc spring a distinctive spring characteristic. A disc spring can deliver a relatively high amount of force over a short deflection. The downside is that the disc spring also has a short maximum deflection.
Disc springs are essentially 100% standardized. Deviating from standard dimensions is generally very costly in practice. Due to the large variation in outer and inner diameters on one hand, and thickness on the other, stacking disc springs allows for a wide range of forces and deflections to be configured.
Applications
- High load in a small space
- High load with short deflection
- Both linear and non-linear force-deflection characteristics
Calculations
Calculations for disc springs are highly complex (informatie@roveron.nl). The calculations involve the thickness of the disc spring, the outer diameter, and the ratio between the outer and inner diameters. The thickness of the disc spring is cubed in the calculations, thus having a significant effect on increasing or decreasing the possible forces in a design. For force-deflection calculations of disc springs and/or disc spring stacks, as well as for determining material stresses and expected lifespan, it is best to contact us!
Tolerances
Tolerances for disc springs are of course fully specified for both dimensions and the force delivered by the springs.
Materials
Disc springs can be made for all possible conditions: high or low temperatures during use, (sea) water environments, chemical environments, (non-)magnetic environments, and more. For each application, there is a different alloy that combines the properties of various alloying elements into an optimal mix. Standard disc springs are available in 50CrV4 and, in many cases, also in 1.4310 stainless steel. Other materials (heat-resistant, corrosion-resistant, non-magnetic) can be requested.
