Conical Belleville spring washers in 300 series passivated stainless steel are now available ex-stock from Lee Spring. This material and finish provides good corrosion resistance for most applications.
Typically Belleville springs (also known as disc springs) offer dramatic savings in height and high load capability, making them an excellent choice for applications requiring high loads in a small space with minimal deflection. They are often used to solve vibration, thermal expansion, relaxation and bolt creep problems, and are easily adjustable by exchanging springs of different thicknesses. They can be configured differently in this way to achieve essentially infinite tunability of spring rate and can act as a shock absorber or to perform a dampening function.
Standard or custom Lee Spring Belleville washers may be stacked in a variety of configurations and thicknesses - for example, in series or in parallel or a combination of both to achieve varying loads and heights and, therefore, different sets of operational characteristics.
Lee Spring Belleville washers are available in standard sizes from 5mm to 95mm outside diameter and 2.4mm to 52mm inside diameter.
Follow the link for more information about Lee Spring's Belleville spring washers.