Spring Design Menu | Spring Suppliers and Manufacturers
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any of the values remaining by changing one of the variables then selecting the
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F = Force exerted on spring
DStanding = Free length of spring
DDeflected= Length of spring with force applied
k = Spring constant determined by experiment or calculation (Calculate
k Constant)
Equation = Force (F) = k(DStanding - DDeflected)
Compression Spring Design Suggestions:
Spring rate can be measured by taking the
difference in force at 80% maximum deflection and 20% minimum deflection and
dividing by the difference in deflection. The spring rate tends to be constant
over the central 60 percent of the deflection range. Because of end-coil
effects, the first 20% of deflection range has a considerably lower spring rate.
The final 20% of deflection shows considerably higher spring rate. When
designing for a particular spring, design for critical loads and rates to be
within the central 60% deflection range. Standard and custom springs are
available.
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