Siemens SINAMICS V90 Operating Instructions Manual page 75

To ensure better heat dissipation, install a flange between the machine and the motor. You
can install the motor onto the flange with four screws as shown in the following figure.
The information about the screws and the flange is as follows:
Motor
Low inertia motors
1FL602❑
1FL603❑
1FL604❑
1FL605❑
High inertia motors
1FL604❑
1FL606❑
1FL609❑
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002
Screw Recommended flange size
2 x M4 120 x 100 x 40 (mm)
4 x M5 120 x 100 x 40 (mm)
4 x M6 120 x 100 x 40 (mm)
4 x M8 120 x 100 x 40 (mm)
4 x M6 270 x 270 x 10 (mm)
4 x M8 390 x 390 x 15 (mm)
4 x M12 420 x 420 x 20 (mm)
3.2 Mounting the motor
Tightening torque Flange material
2.4 Nm Aluminum alloy
4.7 Nm
8 Nm
20 Nm
8 Nm Aluminum alloy
20 Nm
85 Nm
Mounting
75