Rotary bearing with several xiros PRT rings on an orange background.

Slewing ring ball bearings

Slewing ring ball bearings generally belong in the category of large bearings as they transmit axial and radial forces at the same time. Unlike ball bearings, slewing ring ball bearings are not mounted in a housing or on a shaft. Hence, there are mounting holes in the outer and inner races to allow for optimal power transmission and a quick connection to the relevant and adjacent components. The slewing ring ball bearings are usually assembled on top of each other, but a vertical installation is also possible. In metal slewing ring ball bearings, the rolling elements are kept at a distance and run in a sealed and lubricated raceway. igus gives customers the option to choose between two different variants that are 100% lubrication-free. In addition to a slewing ring ball bearing that runs on low-maintenance sliding elements, igus offers slewing ring ball bearings supported by ball bearings, no matter whether with outer drive teeth, inner drive teeth or custom-made special parts.

iglidur PRT slewing ring bearing supported by plain bearings

PRT slewing ring with internal teeth and mounting holes.

100% lubrication-free
Very slim design
Ready-to-install & easy to assemble
Resistant to dirt, dust, corrosion and humidity
Find the right slewing ring bearing for your application here

Find out more about slewing ring ball bearings supported by plain bearings

xiros slewing ring ball bearing supported by ball bearings

Xiros ball bearing in ring shape with a white plastic housing and visible raceway.

100% lubrication-free
Completely non-metallic version available
Ideal for the food and chemical industries
FDA-compliant components
Ball bearing service life calculation

Find out more about slewing ring ball bearings supported by ball bearings

Finding the right slewing ring ball bearing depends on the requirements of your application. iglidur PRT slewing ring bearings are ideal for high axial and radial loads, large tilting moments and impact loads. They are the perfect solution for robust pivoting movements and slowly rotating applications.

In contrast, xiros slewing ring ball bearings are designed for particularly smooth, continuous rotation. They are ideal for applications with small to medium loads where a low frictional torque is a priority.

Both systems operate without lubrication or maintenance. While iglidur PRT impresses with its load capacity and robustness, the xiros slewing ring bearing plays to its strengths in smooth rotating movements.

Where can I buy slewing ring bearings?

You can find PRT slewing ring bearings, slewing ring ball bearings and other designs in various installation sizes in our online shop. Thanks to the wide range of materials, our solutions are designed for a wide variety of industries and can also meet the requirements of your specific application.

Buy PRT slewing ring bearing in the online shopBuy slewing ring ball bearing in the online shop

Our slewing ring ball bearings in use

Assembly table with slewing ring bearing and technical modules for machine assembly.

Assembly table with iglidur PRT-01 slewing ring bearing

"We were looking for a simple slewing ring bearing that would allow our assembly table to rotate. Using the maintenance-free PRT slewing ring bearings was therefore very helpful, and the cooperation with igus went very well."
Maciej Banaś, GBK Projektowanie i Budowa Maszyn

Heating cable drum with xirodur B180 slewing ring ball bearing

"The xiros slewing ring ball bearings impressed us due to their lack of lubrication, smooth running and low weight of the plastic. The individual design options for the products were also very useful during the development process."
Jonas Bodenbender, CEO Bodenbender GmbH