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
1.6
mm
Wire diameter
Di
mm
Inner coil diameter
D
11.1
mm
Mean coil diameter
De
12.7
mm
Outer coil diameter
Dd
9
mm
maximum diameter of mandrel
Dh
13.3
mm
minimum diameter of bush
L0
79
mm
unstressed spring length
Lk
58.64
mm
buckling length
Fn
108.463
N
maximum force in static use
Ln
37.9
mm
Minimum length in static use
sn
41.1
mm
Maximum spring deflection in static use
Fndyn
101.726
N
maximum force in dynamic use
Lndyn
40.45
mm
Minimum length in dynamic use
shdyn
19.87
mm
Maximum stroke in dynamic use
S
4.184
mm
pitch of spring
n
18.5
pc.
number of active coils
nt
pc.
total number of coils
R
2.639
N/mm
Spring rate
Weight
11.3615
g
weight of one spring
Fntol
6.73
N
(+/-) tolerance of maximum force in static use
Fndtol
6.63
N
(+/-) tolerance of maximum dynamic force
Detol
0.3
mm
(+/-) tolerances of outer coil diameter
L0tol
1.93
mm
(+/-) tolerance of unstressed spring length
Price group
G
-
price group
F1tol
N
(+/-) tolerance of prestressed spring force
F2tol
N
(+/-) tolerance of loaded spring force