Conical springs
have several unique characteristics that may be useful in certain applications.
Often referred to as tapered springs, the coils of a conical spring gradually
increase in size along its length. They have a wide variety of applications in
many different industries. Here are three features of conical springs:
Stability
Even minimal side
deflection of a cylindrical spring can cause it to buckle, but tapered body of
a conical spring is much more stable, requiring less lateral support.Conical
springs are the preferred choice where loading is not perfectly axial, or where
the entire length of the spring cannot be supported by a rod or housing.
Variable Spring Rate
A conical spring
with a constant wire thickness or pitch will have a variable spring rate, with
the spring force increasing as the spring is compressed.This can be useful
where higher stiffness is required for increasing loads.By producing the spring
with a wire thickness that varies along its length, the spring rate can be made
constant.This allows conical springs to perform like their cylindrical
counterparts.
When a
cylindrical spring is compressed, its coils stack on top of each other.Depending
upon the wire thickness and number of coils, the resulting height can be
significant.Because of its tapered geometry, the coils of a conical spring can
be designed to nest completely within one another so that the compressed spring
height is equivalent to a single wire thickness. This allows conical springs to
be used in areas where axial space is limited.
Conical springs
have unique qualities that make them a practical choice for many applications.A
spring manufacturer will help you determine the best spring type for your needs
and can assist you in designing a spring to meet your specifications.
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