Frequently asked questions about igus® iglidur®

Made from high performance polymers, iglidur® plain bearings are wear-resistant tribo-polymers improved by precise additions of strengthening materials and solid lubricants. Tested thousands of times, igus® engineers developed and tested 267 new plastic compounds each year. The finely tuned combination of plastic matrix, strengthening components and solid lubricants in every single tribo-polymer results in an individual properties profile in each case. 

In more than 12,000 individuals tests a year on over 200 test rigs in the igus® test laboratory, all materials are thoroughly tested. The findings go into a unique knowledge database on the tribology of maintenance-free plastic plain bearings. This database enables us to select the ideal iglidur® plain bearing for our customers depending on the application and to calculate its anticipated service life.

igus® have multiple price breaks from 1 piece to 5000 pieces.

There are many options,you can either request one through the automated sample process on the website, ring the office on: 01604 677240, email the office: or request them via live chat on the igus® website.

Yes, we can machine, mould, 3D printing or laser cut, depending on the part. Please contact our dry-tech® team for all enquiries at 

Yes we can, but it is weight dependent. Contact igus® to inquire on pricing: 01604 677240

This is dependent on the application. Mostly, igus® plastic bearings do not need to be stronger than metal bearings, but they will outlast them. Please email for some technical help or ring 01604 677240. 

igus® have a range of under water materials however, it will depend on your application which material you may need. Try our online configurator.

iglidur®X bearings are usually the best for mountain bike application however depending on which part of the bike will depend on the material. Click here for some suggestions. 

Alternatively, call or email the office for some technical help at or 01604 677240

Material requirements depend on the application. igus® have multiple FDA materials that will suit your needs. We have FDA iglidur® bearings, e-chain® and stock materials. 

Yes, we can machine parts to your drawing, send us the enquiry via this form and you will get a quote by return, usually the same day, certainly within 24 hours. 

The iglidur® plain bearings are designed to be pressed into a housing (with an H7 tolerance) The bearing will have a nominal size for the outer diameter. They are then secured by the press-fit. Please be aware that the outside diameter of the bearing is, depending on the nominal size, about 0.1 to 0.25 mm larger than the housing in the non-pressed state. The inner diameter will reach its final dimensions and tolerances when pressed in.

All of the igus® materials are RoHS compliant.  The RoHS abbreviation means “Restriction of (the use of certain) Hazardous Substances” You can find all details here.

Please send all orders to

iglidur® J3 is an extremely low wear material.  It gives up to three times more wear resistance than standard iglidur® J , however is yellow and sometimes customers need to have a material which is invisible within their application or certainly hidden.  iglidur® J3, which is now available in black means that customers can have a material that is extremely wear resistant and allows for the bearing to be hidden.

All of our bearings run dry as you know, but sometimes extreme applications require an extra seal. Rubber seals in abrasive environments do not work very well, they wear out very quickly, however felt seals act as a filter and a seal when running dry, keeping out those abrasive particles. This allows for the bearings to last much longer in these really extreme environments, agriculture being one of them.


As you know, our iglidur® bearings are injection moulded.  The materials are homogeneous and this means that you get the same performance throughout the wall thickness. However, even with this predictable nature customers are demanding more high tech solutions to their reduction in downtime.  So, we have designed and are now producing iglidur® bearings with a wear detecting system inside the material. This allows the bearing to have a set amount of wear and when the bearing reaches this, it sends a signal to a module which alerts the customer that the bearing is due to be inspected. The signal is not sent at a failing point but it will need to be looked at soon. 

Yes we do! We have a large range but the most popular ones are iglidur® ,X A350 and A500. These will be equivalent to the likes of PEEK & HPV

Nylon is its own material as is iglidur®. They are not the same but have similar properties in some of the iglidur® materials. igus® have comparable materials that can be offered as an equivalent to Nylon or any other traditionally known plastics. 

Currently not in the plain bearing range but we do offer them in the igubal range

We have regular shipments in from Germany but to keep costs down as low as we can for customers we have a collective shipment from the head office which has multiple orders on. This shipment comes by sea and we quote 10 days as a worst case scenario. There are options for faster shipments should you require this but there will be a surcharged cost. 

Occasionally, as the stock is live there can be instances where the website is slightly out. If this is the case we will do our best to offer an alternative or see if we can get the parts quicker from Germany.

This is an age old quandary and to be honest it can be confusing. The USA do things slightly differently to the rest of the world and sometimes change the part numbers to suit their market.

  • Load per bearing point between 100 and 1,000N
  • Surface speed between 100 and 1,300rpm
  • Available shaft diameters:
    6, 8, 10, 12, 13, 14, 15, 16, 17, 18, 20mm
  •  Tests at room temperature and up to 150°C
  • Underwater tests

We test them against the likes of POM-C, PEEK, PTFE , Nylon and many more.