1-10 Output Stiffness
46
1
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8
9
10
11
付
Ou
tlin
e
1-10
Output Stiffness
Moment stiffness
The moment stiffness refers to the torsional stiffness when a moment load is applied to the output
shaft of the actuator (shown in the figure).
For example, when a load is applied to the end of an arm attached on the output shaft of the actuator, the face of
the output shaft of the actuator tilts in proportion to the moment load. The moment stiffness is expressed as the
load/gradient angle.
Model
Item
SHA20A
SHA25A
SHA32A
Reduction ratio
50:1 or more
11:1
50: 1 or more
11:1
50:1 or more
Moment
stiffness
Nm/rad
25.2
×
10
4
37.9
×
10
4
39.2
×
10
4
86.1
×
10
4
100
×
10
4
kgf
･
m/rad
25.7
×
10
3
38.7
×
10
3
40
×
10
3
87.9
×
10
3
102
×
10
3
kgf
･
m/arc-min
7.5
11.3
11.6
25.7
29.6
Model
Item
SHA40A
SHA58A
SHA65A
Reduction ratio
50:1 or more
80:1 or more
80:1 or more
Moment
stiffness
Nm/rad
179
×
10
4
531
×
10
4
741
×
10
4
kgf
･
m/rad
183
×
10
3
542
×
10
3
756
×
10
3
kgf
･
m/arc-min
53.2
158
220
Do not apply torque, load or thrust to the sleeve (hollow shaft) directly.
The sleeve (hollow shaft) is adhered to the output rotary shaft. Accordingly, the adhered
sleeve may be detached from the output rotary shaft if a torque or load is applied to the
sleeve (hollow shaft).
Do not apply any torque, moment load or thrust load directly to the sleeve (hollow shaft).
Load
Gradient
CAUTION
Sleeve
(hollow shaft)
Output shaft
