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TENSION SPRINGS |
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Tension springs, like compression springs, are stressed in shear
but are “pulled” rather than “pushed” in order to effect energy
transfer. By virtue of this they have different end forms to
anchor them and to effect the actuation of the energy stored.
The form of the ends is varied and virtually infinite in shape
to suit the user and the application. However there are a number
of standard or commonly used shapes as follows: |
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Tension springs are usually, but not
exclusively, close coiled. Although, like compression springs,
they have a nominally linear rate, when close coiled they are
coiled with “initial tension”. This initial tension is
introduced by the coiling process and is best described as “the
amount of force that can be applied to the spring before the
coils begin to open”. There are limits to the amount of initial
tension that can be coiled into the spring, which in general is
a function of its material specification and the structural
ratio of its diameters.
Kato-Entex have extensive facilities for coiling tension springs
from round and sectional materials and have developed a number
of special end forms for the convenience and efficiency of our
customers requirements. With a range of capabilities using wire
diameters from 0.1mm to 14.0mm and the ability to develop
designs using hand made techniques we have a solution for you. |
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