Plastic slewing ring ball bearings
maintenance-free and tough
iglidur® PRT slewing ring bearings are ready-to-install bearings for lubrication-free dry operation. The design is not based on re-circulating components, but on maintenance-free sliding elements made of tribologically optimised iglidur® materials and rings made of lightweight anodised aluminium or stainless steel.
iglidur® materials are universally applicable and can be used in combination with high temperatures, moisture, chemical contact or in the food industry.
iglidur® materials are universally applicable and can be used in combination with high temperatures, moisture, chemical contact or in the food industry.
What you will find on this page:
Discover the range of slewing ring ball bearings to increase your efficiency
Versatile and flexible applications with PRT slewing ring bearings
Series 01
High loads and high rigidity
Buy Series 01
Series 02
Applications with extremely light weight
Buy Series 02
Series 03
Applications with confined installation space
Buy Series 03
Series 04
All-rounder for a wide range of applications
Buy Series 04
Series 05
Low-cost applications made from at least 97% regranulate
Buy Series 05
Accessories
Spacer rings, manual clamps, angle stops, machined ends, replacement kits and much more.
To the shop
▲ Tech up
The PRT configurator:
Find the right slewing ring bearing for your application quickly and easily
Determine in just a few minutes which PRT slewing ring bearing is the best choice for your individual application. You can also find out how long our PRT slewing ring bearings will last in your application - and then select the slewing ring bearing with the best price-performance ratio. Go to the online configurator
▼ Cost down
Individually configurable:
PRT-04 modular system
✅ Tailor slewing ring bearings to your application✅ Various external and internal gearings
✅ Angle stop, snap mechanism and much more
✅ Ready to install and easy to assemble
✅ 100% maintenance-free and lubrication-free
✅ Eight installation sizes
To the PRT-04 modular system
Special designs and drawing parts
Do you have an individual application and need special parts?
In addition to our extensive standard range, we also offer custom-made products according to your specifications.
- PRT Hygienic Design slewing ring bearings
- PRT slewing ring bearings with cleanroom and dry room certification
- PRT-04 in individual diameters for flat installation spaces
Advantages of the iglidur® PRT slewing ring bearings
Cost-effective
Manufacturing with injection moulding or 3D printing guarantees cost efficiency and creates the geometrical freedom to optimise use of installation space. Thanks to the flexible modular system, the slewing ring ball bearings can be extended as required.
Lubrication and maintenance-free
More about our lubrication-free products
Up to 60% lighter
The iglidur® bearing technology impresses with ultra-light materials, such as plastic and aluminium. This enables you to achieve greater efficiency in your application.
Quiet dry operation
The igus® PRT slewing ring bearings with plastic sliding elements produce significantly less noise and vibrations. For you as an operator, plastic gears - for example in robots - lead to an application that is up to four times quieter.
Resistant to chemicals and media
Suitable for the food industry (FDA) and for daily cleaning with cleaning agents and high pressure. PRT slewing ring bearings are also an ideal solution for special applications with high temperatures of up to 180°C or ESD.
The rings are made of plastic, aluminium or stainless steel.
Tested and proven
To the igus® test laboratory
Application examples - slewing rings in real life
Krones AG relies on lubrication-free PRT slewing rings from igus®
The Linatronic 735 from Krones is used to check reusable bottles. Are there objects, smallest foreign bodies or lye residues in the bottles? Are there cracks in the glass or has something splintered? Are there dirt residues on the side? PRT slewing rings are used to open the Linatronic. They ensure lubrication-free and maintenance-free bearing points and make a significant contribution to hygienic design.
Rotating digital flip chart
The compact design of the PRT-02-30 makes it the ideal flip chart solution. Thanks to ready-to-install delivery, it also did justice to easy assembly. In addition, due to the plastic sliding elements made of iglidur material, maintenance work is no longer necessary after installation.
More on the application
Personal robot
When upgrading a customer robot, an iglidur PRT slewing ring was incorporated in the axis for the first time. An iglidur PRT-02-20 is now used in the rear axis of the robot. In order to optimally meet the requirements of EEVE, igus designed a custom solution with reduced required drive torque. It ensures that the rear wheel can rotate freely even in harsh operating conditions and without any maintenance.
More on the application
Insulation material cutter with iglidur® PRT slewing ring bearing
An iglidur® slewing ring, PRT-01 with an outer drive ring made of aluminium and sliding elements made of iglidur® J were used to develop a 3D head that makes angled cuts and holes using a high-pressure water jet.
The success for our customer: an automatic insulation material cutter that cuts the insulation boards according to the CAD data.
The success for our customer: an automatic insulation material cutter that cuts the insulation boards according to the CAD data.
More on the application
Coffee robot
The manufacturer of the coffee robot was looking for a maintenance-free slewing ring with low starting torque. PRT-04 slewing ring bearings from igus are now used in the dispensing system as they easily meet all requirements.
More on the application
TV mount with iglidur® PRT slewing ring bearing
The PRT slewing rings can withstand a static axial load of 27,000 newtons and a dynamic axial load of 7,000 newtons.
The TV mount can also be pivoted, telescoped and rotated up to 360° at the same time. The mount impresses with innovative unique selling points such as freedom from lubricants to avoid contamination of technical devices, as well as freedom from maintenance and quiet operation for optimal comfort.
The TV mount can also be pivoted, telescoped and rotated up to 360° at the same time. The mount impresses with innovative unique selling points such as freedom from lubricants to avoid contamination of technical devices, as well as freedom from maintenance and quiet operation for optimal comfort.
More on the application
Further application examples with iglidur® PRT slewing rings
In a great variety of industries, polymer slewing ring are used to technically refine solutions and save costs.
Further application examples
Our new slewing ring bearing products in 2024
▶ Discover now
Interactive 3D models
Discover 3D models!
CAD files
Go to download centre
Our new products catalogue
To the interactive catalogue
Slewing ring bearing FAQ
Here, we have compiled the most frequently asked questions about our iglidur® PRT slewing ring bearings for you.
To the PRT FAQ
What are PRT sliding elements made of?
iglidur materials under scrutiny
