Spring Design Menu | Spring Suppliers and Manufacturers
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This calculator will calculate
any of the values remaining by changing one of the variables then selecting the
"calculate: button for the selected variable.
TF = Total Force exerted on spring
D = Distance spring is deflected
IT= Initial tension force on spring
k = Spring constant determined by experiment or calculation
Equation: (Total Force) TF = IT + (D x k)
About Extension Spring Design:
Most extension springs are wound with an initial
tension. This tension is the force that holds teh spring coils wound
together. The spring rate tends to be constant
over the central 60 percent of the deflection range. When
designing for a particular spring, design for critical loads and rates to be
within the central 60% deflection and load range. Standard and custom springs are
available. Exceeding manufactures maximum deflection almost always reduces
usable spring life cycles.
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