Formula symbolsValueUnitDescription
Material
EN 10270-3-1.4310
-
Type of material
Coiling direction
Left
-
Coiling direction
Leg position
90
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
5
mm
Wire diameter
Di
20
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
46.25
mm
length of spring body
Ls
150
mm
leg length
RH
mm
leverage
Mntol
3941.5
Nmm
(+/-) Tolerance maximum torque
Mn
9706.06
Nmm
maximum torque
alphan
63.49
degree
maximum rotational angle
nt
8.25
pc.
total number of coils
Ddmax
17.5
mm
maximum possible mandrel diameter
Ddmin
15
mm
Min. possible mandrel diameter
Ditol
0.5
mm
(+/-) tolerance of inner coil diameter
Weight
147.125
g
weight of one spring
Price group
T
-
price group