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10-4
Assembly
3. Connect the motor to the gearbox. Insert the motor shaft into the
gearbox coupling until the gearbox`s connecting flange and the motor
face are fully in contact. It should be possible to accomplish this
without excessive force. The gearbox is equipped with an integrated
thermal length compensation to compensate for the thermal
expansion of the motor shaft. When joining the parts together, the
axial force exerted onto the compression coupling must not exceed
the value specified in the table below (see Fig. 10-4). The force is
exceeded, the compensation for heat expansion of the motor shaft
cannot be ensured. This can lead to damage of the motor and/or the
gearbox.
Gearbox
Clamping bolt
type
EN ISO 4762
M5-8.8
GTM060
GTM075
M5-12.9
M6-12.9
GTM100
M8-12.9
GTM140
GTM180
M10-12.9
M16-12.9
GTM240
Fig. 10-4:
Axial force
Fig. 10-5:
Insert the motor shaft into the gearbox
To negate the weight of the motor and/or the gearbox
itself, we recommend to perform this mounting in the
vertical axis.
CAUTION
Planetary Gearboxes
Wrench size
Tightening
torque
[mm]
[Nm]
4
5,5
4
9,5
5
16
6
40
8
79
14
330
DOK-GEAR**-GTM********-PR01-EN-P
Max. axial
force on
compression
coupling
[N]
60
85
115
130
170
220
GG000005v01_en.EPS
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