Formula symbolsValueUnitDescription
Material
EN 10270-1
-
type of material
Eylet shape
1/1 deutsche
-
Eylet shape
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
Eyelet position
180
°
Eyelet position
d
1
mm
Wire diameter
D
-
mm
mean coil diameter
De
7.3
mm
outer coil diameter
Dh
9
mm
minimum bush diameter
L0
79.5
mm
length of unstressed spring, measured from inner edge of loop to inner edge of loop
Lk
70.5
mm
length of unstressed spring body
Ln
-
mm
maximum spring length, inner loop to inner loop
sn
79.58
mm
Maximum spring deflection
Fn
51.3
N
Maximum spring force
n
-
pc.
Number of aktive coils
nt
-
pc.
total number of coils
Lh
4.5
mm
distance of inner edge of loop from the spring body
R
0.586
N/mm
Spring rate
F0
4.661
N
initial tension
Fntol
3.18
N
(+/-) tolerance of maximum spring force
L0tol
1.5
mm
(+/-) tolerance of unstressed length
Detol
0.2
mm
(+/-) tolerance of outer coil diameter
Oesttol
46
degree
(+/-) tolerance of loop position
Weight
8.751
g
weight of one spring
Price group
ZF
-
price group