Belleville Spring Washers FAQs

1. Can it deflect past H1?
Yes. The loads listed in the catalog are generally at a 50% deflection. It should be noted that loads are greater than computed when a washer is deflected more than 75% of its available travel.

2. Is the spring magnetic?
Type 302 stainless steel is slightly magnetic.

3. What are the advantages of Parallel stacking?
Parallel stacking increases the load proportionally to the number of washers.

4. What are the advantages of Series stacking?
Series stacking increases the amount of available travel. The load-carrying ability of the stack does not increase. In a theoretical world, the applied load is equally transmitted to each washer.

5. What is the finish?
It is that of the plain material. Carbon steel is oiled to prevent corrosion.

6. What kind of plating?
Electroplating is not recommended due to the possibility of the washers breaking due to Hydrogen cracking. Mechanical plating should be used because it substantially reduces this risk. The washers can also be black-oxided, or phosphate-coated.