Belleville Spring Washers


Belleville Spring Washers

Belleville Washers are conical in shape, allowing them to work like a heavy-duty spring and provide high spring loads in tight places. They provide a spring force when compressed, useful for pre-loading assemblies or adding flexibility to a bolted joint.  Belleville Washers are also known as a coned-disc springs, conical spring washers, disc springs, Belleville springs or cupped spring washers. 

Deflection in a single Belleville Spring Washer is small.  Series stacking increases the deflection in proportion to the number of washers, but the load remains the same as a single washer.  Parallel stacking increases the load approximately proportional to the number of washers (a 5% to 10% load loss per washer is introduced).

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Advantages:

  • Stainless Spring Steel non-corrosive (also available in Carbon Spring Steel)
  • High loads in small space
  • Combine washers (series or parallel) to vary load carrying possibilities
  • Available in Inch and Metric sizes

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