Formula symbolsValueUnitDescription
Material
EN 10270-1
-
type of material
F1
N
prestressed spring force
Fx
N
loaded force of the section
L1
mm
prestressed spring length
Lkx
mm
relaxed length of the section
s1
mm
prestressed spring deflection
sx
mm
loaded deflection of the section
F2
N
loaded spring force
L2
mm
loaded spring length
s2
mm
loaded spring deflection
d
0.7
mm
wire diameter
D
mm
mean coil diamter
De
3.5
mm
outer coil diameter
Lk
mm
length of relaxed spring body
Ln
mm
maximum spring length
sn
mm
maximum spring deflection
Fn
37.38
N
maximum spring force
F0
4.8
N
initial tension
sn1
0.29
mm
maximum spring deflection of one coil
R1
111.321
N/mm
spring rate of one coil
R
N/mm
spring rate
Dh
mm
minimum bush diameter
Detol
mm
(+/-) tolerance of outer coil diameter
F0tol
N
(+/-) tolerance of initial tension
Fntol
N
(+/-) tolerance of maximum spring force
Weight
38.25
g
weight of one spring
Price group
#AY
-
price group
F1tol
N
(+/-) tolerance of prestressed spring force
F2tol
N
(+/-) tolerance of loaded spring force