STAINLESS STEEL DISC SPRINGS DIN 2093

Disc Springs DIN 2093 — Disc springs - also widely known as Belleville washers - look similar to a conical spring washer at a glance, but DIN 2093 treats them as a general mechanical spring component rather than a washer sized specifically for a bolted joint. They are engineered to a defined, published spring-rate curve, supplied across a wide range of sizes and thicknesses, and used wherever a high spring force is needed within a limited axial space - clutch and brake assemblies, relief valves, bearing preload systems, and any mechanical design where a coil spring would simply take up too much room for the force required. DIN 6796, by contrast, is a specific application of the same conical-disc principle, sized and rated to sit directly under a bolt or nut in a bolted joint; DIN 2093 covers the underlying disc spring more broadly, for use well beyond fastener assemblies. Their real strength is in how they can be combined: stacked in series increases total deflection for the same force, stacked in parallel increases total force for the same deflection, and combined series-parallel stacks let the load-deflection characteristic be tailored precisely to the application, rather than accepting whatever a single washer or coil spring happens to provide. Getting the stack configuration and disc rating right depends on the required force, available axial space, and deflection, referenced against DIN 2093's standard size and thickness groups - a task that benefits from checking the published load-deflection data rather than estimating. Material selection is driven by the mechanical duty far more than by corrosion alone: high-grade spring steel is the default for demanding force applications, with stainless variants specified where the operating environment - washdown, marine, or chemical exposure - would otherwise degrade a carbon steel disc's performance and consistency over its service life. Precision Shim Washers can complement a disc spring stack where fine height adjustment, rather than additional spring force, is what is needed to dial in the final assembly.

FAQs
How does a disc spring differ from a conical spring washer such as DIN 6796?
DIN 6796 is a specific application of conical disc spring geometry sized and rated for use directly under a bolt or nut. DIN 2093 covers disc springs more generally, for springs, clutches, valves, and other mechanical assemblies, not only bolted joints.

Are DIN 2093 disc springs interchangeable between manufacturers?
Sizes and thickness groups are standardised under DIN 2093, so discs from different manufacturers to the same size and group are generally compatible, though load-deflection data should still be checked against the specific supplier's figures.

How do I select the correct DIN 2093 disc spring?
Selection depends on the required force, available axial space, and deflection, referenced against DIN 2093's standard size and thickness groups; the stacking arrangement is then chosen to achieve the target load-deflection curve.