top

Frequently asked questions about igus® slewing ring systems

Combining igus®  polymers with high quality anodised and hard anodised aluminium as well as stainless steel.

iglidur® PRT slewing ring bearings comprised of maintenance-free sliding elements manufactured from proven tribologically optimised iglidur® materials in combination with support rings made of lightweight anodised aluminium or chemical and corrosion resistant stainless

steel 316 offer many advantages over metallic roller and ball bearing alternatives. They are fully configurable on our website as well as being life calculable. We can provide the CAD for each part and then once ordered, are delivered ready-to install. These parts are self-lubricating and offer very low wear all environments. The belt profiled outer options make driving these slewing rings easy, we have a range of belt options to chose from including AT10, T10, HTD5M and HTD8M. Spur gearing is also a favourite for simple direct drive.

There are endless opportunities for these PRT slewing rings, in all kinds of applications and some of the key features are:

For example:

Completely maintenance-free
Easy to install and replaceable sliding elements
High wear resistance
For very high loads and high stiffness
Stainless steel versions available
Extensive accessories available, such as hand clamps and position stops.
FDA options available
Bespoke and full integration enquires welcome

The PRT slewing rings are used in multiple of industries. Furniture manufacturers, Material handling, Food and Packaging to name a few.

We call our slewing rings the PRT range.

There are currently 4 ranges, PRT-01, PRT-02, PRT-03 & PRT-04. Each have a variation of sizes from 20mm-300mm dia. 

PRT’s can be mounted horizontally and also vertically so very adaptable. 

Yes, the PRT-01-20-C is equipped with a collar clamp

Yes the PRT-04 is approx 25% less than the PRT-01 version. 

Yes we do. Ours is ESD Compliant and comes with maintenance free sliding elements out of iglidur® F2. The part number is PRT-01-XXX-ES-F2

We have various accessories:

Manual clamps, drive shafts, distance ring, the individual gliding pads, clamping level, adaptor plate, angle stop sets. Please click here to see all available accessories. 

For use in ESD or ATEX areas, we recommend using iglidur® PRT slewing rings with stainless-steel rings and sliding elements made of iglidur F2.

Yes. As an option, iglidur® FDA-compliant PRT slewing rings with iglidur® A180 plain bearings and stainless-steel rings are available.

This depends on the size of the slewing ring. The maximum permissible load on the currently largest iglidur PRT, PRT-01-300, is 150 kN statically in an axial direction, which corresponds to a weight of 15 t. During movement, the permissible load is 90 kN. For the smallest model, PRT-02-20 – for applications with small loads and simultaneously high pressure of costs –, the maximum load is 13 kN statically and 4 kN during movement.

The maximum speed depends on the size. For the largest possible iglidur PRT slewing ring, PRT-01-300, this is 50rpm; for the smallest, PRT-01-20, it is 300rpm.