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The slewing drive DAT 400 wind is part of the Liebherr series-production for wind turbines. The gearbox size 400 can be designed with a short output shaft (design 1) or long output shaft (design 2) and is suitable for use as yaw and pitch gearbox.

metricimperial
  • Reference output torque, dynamic - 38,200 Nm

  • Output torque Tmax - 78,600 Nm

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Reference output torque, dynamic
38,200 Nm
Areas of application
Wind energy
Gear transmission ratios (pitch)
116.4 / 132.1 / 154.2 / 165.6 / 175.0 / 185.7 / 198.0 / 212.5
Gear transmission ratios (yaw)
960.0 / 1,004.3 / 1,090.2 / 1,162.5 / 1,237.5 / 1,443.8
Output torque Tmax
78,600 Nm
VariantsDesign 1Design 2
Diameter of centering seat (mm)365290 / 390
External diameter (mm)440480
Pitch circle diameter (mm)400440
Housing diameter (mm)380380
Number of bolts2432
Diameter of bolts (mm)22.022.0
Installation depth (mm)90305
Height of centering seat (mm)17.015.0 / 60.0
Gearbox height (mm)560375
Flange height (mm)13120
Number of teeth (output pinion)1412
Gear module of output pinion2018
Height of output pinion (mm)160183
Weight (three-stage model) (kg)465345
Diameter of output pinion (mm)340270