Spring Term Glossary
Active Coils: the coils of the spring which store and release energy. The active springs in a compression spring will expand when a spring is compressed.
Deflection: the motion of a spring’s ends or arms after an external load is applied or removed. It is essentially the motion of the spring.
Free Length: the length of a compression spring at rest (when no load is applied to it).
Helix: the spiral form or shape of a spring. Applies to compression, extension and torsion springs.
Hooks: the open ends of an extension spring.
Initial Tension: the force that keeps the coils of an extension spring closed. A certain load must be applied to them to cause the coils to separate.
Load: the force applied to a spring that causes a deflection.
Loops: the shape of the wires at the ends of extension springs (where loads are attached).
Total Coils: the amount of coils that a spring has. The total number of coils (and active coils) determines how much stress the spring can take.
Wire Diameter: the size of the wire used in springs. The thicker the wire, the stronger the spring will be.
Rate: measured in lbs/in. It is the change in load per unit deflection.
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Acme Wire’s designers work with our customers to create a wire component that will provide the greatest functional value. The design of wire products such as levers, handles, supports, rings, guards, baskets, trays, grids, frames, shelves are limited only by one’s imagination (and the limitations of technology).
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Acme Wire Products Co., Inc. – Mystic, CT
Fax – 860-572-9456
