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igus® Ltd.

Caswell Road

Northampton, NN4 7PW

01604 677240
iglidur® replaces metal: 40% more cost-effective, 80% lighter, 100% lubrication-free

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Shifting from metal to iglidur® polymer plain bearings – save costs and improve your technology

For more than 35 years, plastic bearings by igus® have been a technically and economically advantageous alternative to metallic plain bearings. Improved by precise additions of reinforcing materials and solid lubricants, they are suitable for applications and requirements of all kinds, reduce maintenance work and allow for technical improvements.
The reasons are obvious – bearings made of high-performance plastics are:

  • lubrication and maintenance-free
  • predictable
  • cost-effective

Plastic replaces metal: Save 40% costs – 20 customers will show you how to do it.

Further advantages at a glance:

100% corrosion-resistant

Long service life and low coefficients of friction regardless of motion type

High media resistance

High temperature resistance


High resistance to dirt

High vibration dampening


Very good price-performance ratio

Service life can be calculated online

Order online from stock

Metal against iglidur® plastic plain bearings – the individual comparison

Replacement of PTFE and DP4  
Metal bearings against iglidur® polymer plain bearings

Replacement metal composite bearings  
Metal composite bearings

A classic metal composite bearing essentially consists of a metal cover and a very thin layer of polytetrafluoroethylene (PTFE). Typically, these types of bearing have a maximum wear zone of approx. 0.05 mm or approx. 0.002 inches. During operation, the PTFE layer is worn out. In extreme cases, it is completely worn away until metal runs on metal, resulting in shaft damages or "seizing up" of the bearing.

Replacement metal bearings  
iglidur® polymer plain bearings

iglidur® plastic bearings are made of modern polymer compounds, which consist of base polymer, solid particles and so-called solid lubricants. These help reduce the iglidur® plain bearing's coefficient of friction. A transfer to the shaft is not absolutely necessary, but improves functionality. With this homogeneous structure, theoretically the entire wall thickness is available as wear zone.

iglidur® replaces sintered bearings  
Sintered bearings against iglidur® polymer plain bearings

Sintered bushing  
Sintered bearings

The oil is absorbed by the body of the porous sintered bearing and provides lubrication, especially at higher rotation speeds. The oil film necessary to ensure that sintered bearings function effectively does not work in the case of slow and/or linear or pivoting movements. In addition, the amount of oil available for the duration of the operation decreases.

iglidur® polymer plain bearings  
iglidur® polymer plain bearings

The homogeneous and consistent structure with solid lubricating and reinforcing materials but without oil saturation ensures that the solid lubricants incorporated in the material are always available irrespective of the kind of movement. Very low coefficients of friction and wear over the entire life cycle of the product.

Needle bearings  
Needle bearings against iglidur® polymer plain bearings

Needle bearings  
Needle bearings

Due to the line contact between needle rollers and raceways, needle bearings have – compared to the point contact of the ball bearings – indeed a better load distribution at the contact point during rolling, yet the line contact requires a high Hertzian pressure. Therefore, like all rolling bearings, they are sensitive to vibrations and shocks. In addition, wear of the shafts can occur, which is why usually hardened shafts have to be used. Needle bearings can only absorb radial forces.

iglidur® polymer plain bearings  
iglidur® polymer plain bearings

Due to the large load-bearing surface and the comparatively elastic properties of the plastic, iglidur® plain bearings are also suitable for heavy shocks and edge loads. Reinforcing fibres provide an additional improvement of the mechanical properties. In combination with iglidur® plain bearings, "soft" shafts can be used in many applications. Even with edge loads, the risk of shaft wear is significantly lower than with needle bearings.

Customer applications | iglidur® polymer plain bearings replace metal bearings

High temperature

The temperature resistance of high-performance polymer plain bearings is usually underestimated. igus® plastic bearings prove their suitability at up to 250°C.

Further high-temperature applications

Heavy duty

The iglidur® plain bearing materials for high loads combine high wear resistance with the ability to withstand high (static) loads, shocks and edge loads. They have proven themselves in different heavy-load applications for many years.

Further heavy-load applications


iglidur® plastic plain bearings are characterised by their robustness and high service life, especially in dirty applications. An important reason: as no lubrication is necessary, dirt and lubricant cannot stick to the bearing locations.

Further dirt applications

Chemical resistance

Extreme environmental conditions, such as chemicals combined with high temperatures, require special properties of the plain bearings in use. All iglidur® plain bearings can be used in diluted acids and diluted alkalis. Differences occur in particular with higher concentrations or higher temperatures. For this, special iglidur® materials are available.

Further chemical resistance applications


igus® has also developed plain bearing materials for continuous use in water and other liquid media. In addition to corrosion resistance, minimised moisture absorbency and high wear resistance in liquid media are necessary.

Further underwater applications

Change your bearing now!

Shop plain bearings  
Replace from stock

You can quickly find the right product by selecting the application parameters and then calculate the exact service life.

Plain bearings sample box  
Plain bearings sample box

Still unsure? Order our free sample box or an individual sample now and discover solutions for your application.

Personal consultation  
Personal consultation

Would you like an alternative to your existing solution or an individual test setup to convince you of the possibilities with plastic bearings?

Plain bearing test laboratory  

More than 140 trillion test movements per year on a floor area of 2,750 m2 – the company igus® tests, analyses and develops its products under real conditions in the largest laboratory in the industry.


I would be happy to answer your questions personally

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Monday to Friday from 8am - 8pm.