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
6.3
mm
Wire diameter
Di
-
mm
Inner coil diameter
D
80
mm
Mean coil diameter
De
86.3
mm
Outer coil diameter
Dd
72
mm
maximum diameter of mandrel
Dh
88.7
mm
minimum diameter of bush
L0
490
mm
unstressed spring length
Lk
302.8
mm
buckling length
Fn
932.126
N
maximum force in static use
Ln
118.27
mm
Minimum length in static use
sn
371.73
mm
Maximum spring deflection in static use
Fndyn
876.389
N
maximum force in dynamic use
Lndyn
140.5
mm
Minimum length in dynamic use
shdyn
134.58
mm
Maximum stroke in dynamic use
S
38.696
mm
pitch of spring
n
12.5
pc.
number of active coils
nt
-
pc.
total number of coils
R
2.508
N/mm
Spring rate
Weight
897.9647
g
weight of one spring
Fntol
44.2
N
(+/-) tolerance of maximum force in static use
Fndtol
43.7
N
(+/-) tolerance of maximum dynamic force
Detol
1.2
mm
(+/-) tolerances of outer coil diameter
L0tol
12.07
mm
(+/-) tolerance of unstressed spring length
Price group
AP
-
price group
F1tol
-
N
(+/-) tolerance of prestressed spring force
F2tol
-
N
(+/-) tolerance of loaded spring force