Question

A helical valve spring is to be designed for an operating load

range of approximately 90 to 135 N. The deflection of the spring
for the load range is 7.5 mm. Assume a spring index of 10.
Permissible s

Answer 1

90×135=12,150 ...range of approximately =12,150N

7.5÷10×12,150=9,112.5mm...permissible s=9,112.5