Liebherr unveils slewing drive units


                                                                   Liebherr’s new slewing drive units
  • Liebherr is expanding its slewing bearing portfolio with slewing drive units
  • New product line: worm gear drives, pinion drives and toothed belt drives
  • The new slewing drive units are already available for orders

Liebherr Components is presenting a new line of slewing drive units at this year’s Bauma. Particular focus lies thereby on maximum torque and ease of service. With new slewing drive units Liebherr is further expanding its existing slewing bearing portfolio. The new product line includes worm gear drives, pinion drives and toothed belt drives.

Liebherr’s worm gear drives are ultra-compact slewing drive units with high power density. This design is particularly suitable for the transmission of extremely high forces and torques in small spaces. These worm gear drives find use in steering gearboxes of crane and heavy-duty vehicle chassis, loading cranes or agricultural equipment. Liebherr continues to develop the product specifically for these applications with the goal of maximising torque and minimising maintenance costs.

New product group: Characteristics and applications

Slewing drive units are driven by a hydraulic or electric motor. Worm gear drives combine slewing bearings with a drive worm. The worm gearing transmits the torque to the slewing bearing without clearance. Liebherr offers a running tread diameter of up to 725 millimetres. The slewing drive units are available with single-start or double-start, double-bearing worms, which allow for self-locking of the drive depending on the efficiency. A brake option can be adapted for all other versions. Grease or oil can be used for lubrication.

The pinion drives are generally driven via a double supported pinion. This type of slewing drive unit is characterised by a fast rotation speed with low heat development. This design is a perfect combination of Liebherr’s own slewing bearings and drives.

The toothed belt drive is ideal for high circumferential speeds, high efficiency and particularly quiet operation.

The use of special material allows the component to be used in the machine environment at very low temperatures.

This new Liebherr product line further expands the range of products offered by Liebherr Components. This is possible due to the vast experience in the production of components in the area of slewing bearings and drive technology. Liebherr’s innovative team is constantly working to develop and produce slewing drive units in order to meet the needs of our customers.

Alexandra Nolde
Senior Communication & Media Specialist
Phone: +41 56 296 4326
E-mail: [email protected]