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
8
mm
Wire diameter
Di
mm
Inner coil diameter
D
100
mm
Mean coil diameter
De
108
mm
Outer coil diameter
Dd
89
mm
maximum diameter of mandrel
Dh
111
mm
minimum diameter of bush
L0
570
mm
unstressed spring length
Lk
298.53
mm
buckling length
Fn
1403.939
N
maximum force in static use
Ln
149.44
mm
Minimum length in static use
sn
420.56
mm
Maximum spring deflection in static use
Fndyn
1348.115
N
maximum force in dynamic use
Lndyn
166.16
mm
Minimum length in dynamic use
shdyn
157
mm
Maximum stroke in dynamic use
S
44.96
mm
pitch of spring
n
12.5
pc.
number of active coils
nt
pc.
total number of coils
R
3.338
N/mm
Spring rate
Weight
1809.9567
g
weight of one spring
Fntol
66.6
N
(+/-) tolerance of maximum force in static use
Fndtol
65.8
N
(+/-) tolerance of maximum dynamic force
Detol
1.5
mm
(+/-) tolerances of outer coil diameter
L0tol
13.67
mm
(+/-) tolerance of unstressed spring length
Price group
BB
-
price group
F1tol
N
(+/-) tolerance of prestressed spring force
F2tol
N
(+/-) tolerance of loaded spring force