Conical Springs

Wire Springs

Conical (Tapered), Hourglass and Barrel-shaped springs are used in applications requiring a low solid height, increased lateral stability or resistance to surging. Conical springs can be designed so that each coil nests wholly or partly into an adjacent coil. Solid height can be as low as one wire diameter. Rate for conical springs usually increases with deflection because the number of active coils decreases progressively as the spring approaches solid. By varying the pitch, conical springs can be designed to have a uniform rate. Rate for conical springs is calculated, as indicated previously, by considering the spring as many springs in series.

Conical Compression springs are often specified where the large end is meant to work in a bore and the small end is meant to work over a rod. They offer the advantage of a reduced solid height compared to straight compression springs, especially when capable of "telescoping." Conical Springs are Cone shaped compression springs designed to provide a near constant spring rate and a solid height lower than a normal spring. Each spring features a variable pitch to achieve the constant spring rate and coils which nest during deflection to provide a solid height approximately equal to two wire diameters.

Rate for conical springs usually increases with deflection because the number of active coils decreases progressively as the spring approaches solid. By varying the pitch, tapered springs can be designed to have a uniform rate. Rate for conical springs is calculated, as indicated previously, by considering the spring as many springs in series.

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