Determining the screw length
A minimum screw length smin is required to ensure the motors are mounted securely. The maximum permissible screw length smax prevents any damage to the motor.
Minimum screw length smin = Emin + x
Maximum screw length smax = Emax + x
Emax | Maximum screw-in depth |
Emin | Minimum screw-in depth |
smax | Maximum screw length |
smin | Minimum screw length |
x | Material strength |
Bores for self-tapping screws according to DIN 7500.
Size | Recommended screw-in depth | Recommended tightening torque |
|---|---|---|
M4 | 6 mm – 8 mm | 3 Nm +/- 0.2 Nm |
M5 | 9 mm – 10 mm | 5 Nm +/- 0.3 Nm |
