Belleville Washer Spring Rate
T represents the washer material thickness as well as the washer solid flat height.
Belleville washer spring rate. 888 426 6655 id represents the washer inside diameter. Spring inner diameter d0 2 r0 10 3 m. A belleville washer or disc spring is a conical shaped spring with an open center. The total spring coefficient for this group of belleville washers is calculated as below.
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. K the spring constant of one washer. Spring force f n. 888 springs 888 777 4647 fax.
Spring thickness δ 10 3 m. 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. Spring stiffness k df df f f 10 3 n 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.
These washers have smaller outside diameters than standard spring lock washers to fit neatly under socket head cap screws. It is shaped much like a washer and is typically smaller than a coiled spring. G the number of groups. Modulus of elasticity e 10 9 pa.
Performance considerations a similar device is a wave washer. Conical spring washers have a high spring rate resolve thermal expansion and can produce extremely high loads in a small area. 1 spring is considered to be 1 in parallel 1 in series. Tensile stress σ 10 6 pa.
N i the number of washers in the i th group. 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. 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 outer diameter d 2 r 10 3 m.
This is a minimum measurement and reflects the bolt size that the washer will accommodate. Spring deflection f 10 3 m. The slight or aggressive conical shape gives the washer a spring characteristic and action. Od represents the washer.
A belleville spring or washer is formed into a conical or cone shaped geometry. Belleville washers engineering data belleville washer stacking example.