79
1018854 8/2018 V03
9.3 Mechanical Installation
The data necessary for mounting the actuator and for connecting to the load are given in table 79.1.
Unit
CHA-14A
CHA-17A
CHA-20A
CHA-25A
CHA-32A CHA-40A CHA-50A CHA-58A
Load assembly
Number of screws
12
12
12
12
12
12
12
12
Screw size
M3
M4
M4
M5
M6
M8
M10
M10
Screw quality
12.9
12.9
12.9
12.9
12.9
12.9
12.9
12.9
Pitch circle diameter
[mm]
43
52
62
76
96
118
152
175
Screw tightening torque
[Nm]
2.3
5.1
5.1
10
17
42
83
83
Transmittable torque
[Nm]
85
188
228
463
847
1964
4086
4688
Housing assembly
Number of screws
8
12
12
12
12
12
12
12
Screw size
M3
M3
M3
M4
M5
M6
M8
M10
Screw quality
12.9
12.9
12.9
12.9
12.9
12.9
12.9
12.9
Pitch circle diameter
[mm]
68
80
89
105
135
168
206
236
Screw tightening torque
[Nm]
2.3
2.3
2.3
5.1
10
17
42.2
83
Transmittable torque
[Nm]
89
158
177
378
805
1482
3419
6317
Data valid for completely degreased connecting interfaces (friction coefficient μ = 0.15). Screws to be secured against loosening. We recommend LOCTITE 243 to secure screws.
Table 79.1