Source: wikibot/belleville-washer

= Belleville washer
{wiki=Belleville_washer}

A Belleville washer, also known as a disc spring or conical spring washer, is a type of spring washer that has a conical shape. It is designed to provide a flexible and load-bearing capability in various applications. The unique shape allows it to store energy and to exert a force when compressed, making it useful for maintaining tension, compensating for fastener looseness, and absorbing shock or vibration.