Tension Springs

Designation by EN 13906-1:2002

d          Wire / Bar diameter

De        Outer diameter

Di         Inner diameter

D          Mean diameter

L0         Length of unloaded spring

L1         Spring length at load F1

L2         Spring length at load F2

Lc         Block length

Ln         Minimal spring length allowed

Lk         Length of spring body

LH        Hook height

R          Spring rate

tx         Tension at load x

m          Hook opening
With and without prestress
With and without different loops
Wire diameter from 0,25 mm to 36 mm
Outer spring diameter from 6 to 300 mm
Free spring length from 6 to 1500 mm
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