1-9 Rigidity
1-10
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10
11
1
2
3
4
5
6
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8
9
10
11
Ou
tlin
es
1-9
Rigidity
Moment stiffness
The moment stiffness refers to the torsional stiffness when a moment load is applied to the output
shaft of the actuator (shown below).
For example, when a load is applied to the end of an arm attached on the actuator output shaft, the
face of the output shaft tilts in proportion to the moment load (shown below). The moment stiffness is
expressed as the tensional moment/angle.
Model
Item
FHA-8C
FHA-11C
FHA-14C
Moment stiffness
N
･
m/rad
2 x 10
4
4 x 10
4
8 x 10
4
kgf
･
m/rad
0.2 x 10
4
0.4 x 10
4
0.8 x 10
4
kgf
･
m/arc-min
0.59
1.2
2.4
Load
Gradient
