WIRE SPRINGS
Compression Springs
Compression springs are open-coil helical springs that resist a compressive
force that is applied axially. Their shape can be cylindrical, conical, barrel,
hourglass or in any combination necessary for the application. The four
basic end configurations are: Closed; Closed and Ground; Open; and Open
and Ground.
Extension Springs
Extension springs are usually close wound with adjacent coils touching each
other. They resist a pulling force that is applied axially. A wide variety
of end configurations are available. The most common are: Machine Hook; Crossover
Loop; Side Hook; and Extended Hook.
Torsion Springs
Torsion springs are usually close wound. They reduce in coil diameter and
increase in body length when they are deflected. They offer resistance to
externally applied torque. Common end styles are: Straight Legs; Bend Offset;
and Hinge.
Double Torsion Springs
Double torsion springs consist of one right-hand and one left-hand wound coil,
connected together and working in parallel.
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