Harmonic Drive IHD Serie Instructions De Montage page 31

7. Assembly
When setting up or installing the unit, it is essential to comply with the mechanical and electrical installation instructions.
7.1 Mechanical assembly
During assembly, neither shocks nor pressure must be applied to the actuator.
The installation must be carried out in such a way that sufficient dissipation of the heat loss is ensured.
In the case of hollow shaft actuators, no radial forces or axial forces may act on the protective tube of the hollow drive
shaft.
During the bolting to the machine frame, it must be checked whether the actuator can be turned in the centring of the
machine housing without jamming. Even slight jamming can affect the accuracy of the gear. In this case, the fit of the
machine housing must be checked.
The data in the following tables are valid for completely degreased connection surfaces (coefficient of friction μ=0.15).
The screws must be secured against loosening.
The threads of the load attachment must be sealed.
It is recommended to use LOCTITE 243 for screw locking.
7.1.1 Integrated system IHD
The required load and enclosure mounting details are shown in the following table:
Table 13
Unit
Load assembly
Number of screws
Screw size
Screw quality
Pitch circle diameter [mm]
Screw tightening torque [Nm]
Transmittable torque [Nm]
Housing assembly
Number of screws
Screw size
Screw quality
Pitch circle diameter [mm]
Screw tightening torque [Nm]
Transmittable torque [Nm]
The continuous hollow shaft can be used to pass through e.g. mechanical shafts, electrical cables, etc. The hollow shaft
rotates with the output speed of the actuator. No lateral forces may be applied to the hollow shaft. This can lead to
malfunctions of the actuator.
60 Assembly Instructions Servo Actuators
IHD-20A
12
M4
12.9
62
5.1
228
12
M3
12.9
89
2.3
177
1056748 04/2023
7.1.2 Servo actuators BHA
The required load and enclosure mounting details are shown in the following table:
Table 14
Unit BHA-17A
Load assembly
Number of screws 12
Screw size M4
Screw quality 12.9
Pitch circle diameter [mm] 52
Screw tightening torque [Nm] 5.1
Transmittable torque [Nm] 188
Housing assembly
Number of screws 12
Screw size M3
Screw quality 12.9
Pitch circle diameter [mm] 80
Screw tightening torque [Nm] 2.3
Transmittable torque [Nm] 158
The continuous hollow shaft can be used to pass through e.g. mechanical shafts, electrical cables, etc. The hollow shaft
rotates with the output speed of the actuator. No lateral forces may be applied to the hollow shaft. This can lead to
malfunctions of the actuator.
7.1.3 Servo actuators CanisDrive ® / AlopexDrive
The required load and enclosure mounting details are shown in the following table:
It should be noted that the table values are only to be used as initial values for the servo actuator AlopexDrive. Since
the AlopexDrive actuator is always designed as a customised solution, the hole pattern or even the surface (corrosion
protection) may be adapted, which may also have an effect on the fastenings and the transmissible torque values.
Table 15
Unit
14A 17A
Load assembly
Number of screws 12 12
Screw size M3 M4
Screw quality 12.9 12.9
Pitch circle diameter [mm] 43 52
Screw tightening torque [Nm] 2.3 5.1
Transmittable torque [Nm] 85 188
Housing assembly
Number of screws 8 12
Screw size M3 M3
Screw quality 12.9 12.9
Pitch circle diameter [mm] 68 80
Screw tightening torque [Nm] 2.3 2.3
Transmittable torque [Nm] 89 158
The continuous hollow shaft can be used to pass through e.g. mechanical shafts, electrical cables, etc. The hollow shaft
rotates with the output speed of the actuator. No lateral forces may be applied to the hollow shaft. This can lead to
malfunctions of the actuator.
1056748 04/2023
BHA-20A BHA-25A
12 12
M4 M5
12.9 12.9
62 76
5.1 10.0
228 463
12 12
M3 M4
12.9 12.9
89 105
2.3 5.1
177 378
CanisDrive ® / AlopexDrive
20A 25A 32A 40A 50A 58A
12 12 12 12 12 12
M4 M5 M6 M8 M10 M10
12.9 12.9 12.9 12.9 12.9 12.9
62 76 96 118 152 175
50.1 10.0 17.0 42.0 83.0 83.0
228 463 847 1964 4086 4688
12 12 12 12 12 12
M3 M4 M5 M6 M8 M10
12.9 12.9 12.9 12.9 12.9 12.9
89 105 135 168 206 236
2.3 5.1 10.0 17.0 42.2 83.0
177 378 805 1482 3419 6317
Assembly 61