Belleville Washer Design Guide

A belleville spring is a conical shaped disc that will deflect flatten at a given spring rat e.

Belleville washer design guide.

This is a minimum measurement and reflects the bolt size that the washer will accommodate. Other washers have limitations. Offering a design that allows for very high load capacity relative to deflection and available space within the application american belleville washers can be specified using limitless dimensional configurations and load deflection ratings. A belleville spring is a conical shaped disc that will deflect flatten at a given rate.

Because belleville washers can bear a much larger load relative to its deflection rate than a coiled spring they are ideal for cushioning heavy loads with short motion. Such a device does not meet all locking device requirements however. The belleville name comes from the inventor julien belleville who in dunkerque france in 1867 patented a spring design which already contained the principle of the disc spring. Uses of belleville washers.

Tests sponsored by the subcommittee on bolted flange. 888 426 6655 id represents the washer inside diameter. Forces are decreased as m ore washers are used in series since some of the contact surfaces will roll rather than slide 2. These include the following.

It is the frusto conical shape that gives the washer its characteristic spring. To keep bolted connections tight we can choose from several methods. Enter the belleville washer the belleville is a disk spring that applies. Belleville washers provide a very high spring force for short movement and have a high energy storage capacity.

It is shaped much like a washer and is typically smaller than a coiled spring. In a belleville washer the ratio of material thickness to rim width is held to about one in five. T represents the washer material thickness as well as the washer solid flat height. The most common is the insertion of a locking device between the rotating part nut and the parts being fastened i e bus bars.

Whether the belleville washer needs to fit tightly under the head of the bolt or provide a wide. Belleville spring disc spring and conical compression washer are all names for the same type of spring. Principles of belleville. The characteristic curve of a belleville washer makes it possible to be used in various combinations with the necessary support that an application needs.

Od represents the washer. A belleville washer is a type of spring shaped like a washer. This spring rate is usually very high allowing the spring to produce very large loads in a very small space. Gasket material and design.

A belleville washer or disc spring is a conical shaped spring with an open center. That locking device often is a split ring lockwasher.