Formula symbolsValueUnitDescription
Material
EN 10270-3-1.4310
-
Type of material
Coiling direction
Left
-
Coiling direction
Leg position
0
degree
Leg position when relaxed
alpha1
degree
prestressed rotational angle
F1
N
prestressed spring force
M1
Nmm
torque by angle alpha1
alpha2
degree
loaded rotational angle
F2
N
loaded spring force
M2
Nmm
torque by angle alpha2
alphah
degree
working rotational angle
d
0.4
mm
Wire diameter
Di
1.6
mm
inner coil diameter
Dd
mm
diameter of mandrel
LsH
mm
leg length of the lever leg
LsR
mm
leg length of the recumbent leg
Lk0
3.2
mm
length of spring body
Ls
20
mm
leg length
RH
mm
leverage
Mntol
2.1
Nmm
(+/-) Tolerance maximum torque
Mn
7.54
Nmm
maximum torque
alphan
81.73
degree
maximum rotational angle
nt
7
pc.
total number of coils
Ddmax
1.3
mm
maximum possible mandrel diameter
Ddmin
1
mm
Min. possible mandrel diameter
Ditol
0.08
mm
(+/-) tolerance of inner coil diameter
Weight
0.0834
g
weight of one spring
Price group
J
-
price group