9
3.
Setting
Limit load to the shaft
(1)
Although static loads shown in Table 1 are allowable, avoid applying load directly to the shaft.
Table 1
Allowable shaft load
Note) Application point of force "Fr" is at the center of longitudinal dimension of the key.
(2)
For better operating conditions it is recommended to use the method shown in the figure below
to avoid applying direct load to the shaft.
Shaft fitting
As shown in Fig. 4, when the rotary actuator is used with an extended shaft, align the center of the shaft
of the rotary actuator and the counterpart. If they are off-centered, the load factor becomes partially large
and an excessive bending moment may be applied to the shaft.
In such a condition, the assembly may not perform a stable operation and the shaft may be damaged.
In this case, use
Flexible Fitting
("flexible joint" defined in JIS).
Fig.1
Model
Load direction
Fs[N]
Fr[N]
M[N-m]
CRB10
9.8
14.7
0.13
CRB15
9.8
14.7
0.17
CRB20
19.6
24.5
0.33
CRB30
24.5
29.4
0.42
CRB40
40
60
1.02
Fig.4
Fig.2
Fig.3
Fr
Fs
M
Warning
Warning
