Formula symbolsValueUnitDescription
Material
EN 10270-1
-
Type of material
Spring ends
Closed and ground
-
Spring ends
F1
-
N
prestressed spring force
L1
-
mm
Prestressed spring length
s1
-
mm
Prestressed spring deflection
F2
-
N
Loaded spring force
L2
-
mm
Loaded spring length
s2
-
mm
Loaded spring deflection
d
4
mm
Wire diameter
Di
-
mm
Inner coil diameter
D
32
mm
Mean coil diameter
De
36
mm
Outer coil diameter
Dd
27.1
mm
maximum diameter of mandrel
Dh
37.1
mm
minimum diameter of bush
L0
120
mm
unstressed spring length
Lk
mm
buckling length
Fn
667.955
N
maximum force in static use
Ln
48.66
mm
Minimum length in static use
sn
71.34
mm
Maximum spring deflection in static use
Fndyn
580.538
N
maximum force in dynamic use
Lndyn
58
mm
Minimum length in dynamic use
shdyn
23.29
mm
Maximum stroke in dynamic use
S
13.647
mm
pitch of spring
n
8.5
pc.
number of active coils
nt
-
pc.
total number of coils
R
9.364
N/mm
Spring rate
Weight
104.8527
g
weight of one spring
Fntol
31.43
N
(+/-) tolerance of maximum force in static use
Fndtol
30.96
N
(+/-) tolerance of maximum dynamic force
Detol
0.5
mm
(+/-) tolerances of outer coil diameter
L0tol
2.29
mm
(+/-) tolerance of unstressed spring length
Price group
AB
-
price group
F1tol
-
N
(+/-) tolerance of prestressed spring force
F2tol
-
N
(+/-) tolerance of loaded spring force