Product segments

DAT 500 wind

Name: DAT 500 wind Slewing drive
Brand: Liebherr

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.

metric

imperial

Reference output torque, dynamic - 82,900 Nm
82,900 Nm
Output torque Tmax - 171,000 Nm
171,000 Nm

Reference output torque, dynamic	82,900 Nm
Output torque Tmax	171,000 Nm
Areas of application	Wind energy
Gear transmission ratios (yaw)	915.0 / 1,140 / 1,260 / 1,628.9 / 1,954.2 / 2,143.8

Variants

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

Components for Wind Turbines

Slewing Drives for Wind Turbines

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.

Contact

Please contact us – we will answer your questions and put together an individual offer for you. If you need a component as a spare part for your Liebherr machine, please contact your local service partner.

Swivelling drives

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