Conical spring
Category: Spring types
A compression spring whose diameter varies along its length, letting the coils “telescope” and reduce the solid height.
Because the larger coils nest around the smaller ones when compressed, a conical spring takes up little space at full stroke and resists buckling better, making it ideal when a low solid height is needed.
The conical profile can also give a progressive spring rate: the spring stiffens as the larger coils come into contact.
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