DAT 500 wind Slewing drive

The slewing drive DAT 500 wind is part of the Liebherr series-production for wind turbines. The gearbox size 500 can be designed with a short output shaft (design 1) or long output shaft (design 2) and is suitable for use as a yaw gearbox.
Reference output torque, dynamic 82,900 Nm
Output torque Tmax 171,000 Nm

Technical data

Reference output torque, dynamic 82,900 Nm
Output torque Tmax 171,000 Nm
Areas of application Wind energy
Gear transmission ratios (yaw) 1,140 / 1,260 / 1,628.9 / 1,954.2 / 2,143.8 / 915.0
Type Design 1 Design 2
Diameter of centering seat [mm] 420 370 / 475
External diameter [mm] 510 565
Pitch circle diameter [mm] 460 520
Housing diameter [mm] 485 460
Number of bolts 28 24
Diameter of bolts [mm] 26.0 26.0
Installation depth [mm] 115 432
Height of centering seat [mm] 38.0 15.0 / 72.0
Gearbox height [mm] 585 485
Flange height [mm] 70 70
Number of teeth (output pinion) 13 12
Gear module of output pinion 22 24
Height of output pinion [mm] 135 245
Weight (three-stage model) [kg] 825 723
Diameter of output pinion [mm] 350 360


Examples of application

Yaw systems

Yaw systems

Yaw gearboxes, so called wind tracking mechanisms, adjust the nacelle to the particular wind direction. In order to transmit the required high adjustment forces, the use of several slewing drives is recommended.

Slewing bearings

For over 70 years Liebherr has been manufacturing top-quality large diameter slewing bearings. Depending on requirements, various dimensions are available. Product portfolio Large diameter bearings



In the download area you find an overview of all brochures and datasheets for the various Liebherr components. Downloads

Swivelling drives

Liebherr develops special swivelling drives for applications which are exposed to high dynamic loading during the rotating movement (e.g. excavator). Swivelling drives