Belleville Washer Spring Rate

Spring inner diameter d0 2 r0 10 3 m. Belleville spring lock washers also known as conical washers these have a slightly cupped shape that gives them spring like flexibility to grip tighter than split and tooth lock washers. So a 2 3 1 2 stack or since addition is commutative a 3 2 2 1 stack gives a spring constant of 3 7 that of a single washer.

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Belleville washer spring rate.

Belleville washers are typically used as springs where the spring action is used to apply a pre load or flexible quality to a bolted joint. Spring deflection f 10 3 m. Spring force f n. A belleville washer also known as a coned disc spring conical spring washer disc spring belleville spring or cupped spring washer is a conical shell which can be loaded along its axis either statically or dynamically.

1 spring is considered to be 1 in parallel 1 in series. K the spring constant of one washer. A belleville washer is a type of spring shaped like a washer it is the frusto conical shape that gives the washer its characteristic spring. These washers have smaller outside diameters than standard spring lock washers to fit neatly under socket head cap screws.

Spring stiffness k df df f f 10 3 n m. Conical spring washers have a high spring rate resolve thermal expansion and can produce extremely high loads in a small area. G the number of groups. 888 springs 888 777 4647 fax.

888 426 6655 id represents the washer inside diameter. A belleville spring or washer is formed into a conical or cone shaped geometry. This is a minimum measurement and reflects the bolt size that the washer will accommodate. T represents the washer material thickness as well as the washer solid flat height.

A belleville washer or disc spring is a conical shaped spring with an open center. The slight or aggressive conical shape gives the washer a spring characteristic and action. It is shaped much like a washer and is typically smaller than a coiled spring. The total spring coefficient for this group of belleville washers is calculated as below.

Spring outer diameter d 2 r 10 3 m. Belleville spring washer coned disc spring and conical spring washer are all names for a type of spring that is a conically shaped disc that deflects flattens at a given rate. Modulus of elasticity e 10 9 pa. This notation is needed for load calculations if n of springs in a stack then.

N i the number of washers in the i th group. Spring thickness δ 10 3 m. Od represents the washer. Performance considerations a similar device is a wave washer.

Tensile stress σ 10 6 pa. 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.