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igus® Ireland

51A Caswell Road


Northampton NN4 7PW

+44 1604 677240
igus® Ltd.

Caswell Road

Northampton, NN4 7PW

01604 677240

xiros® polymer ball bearings

The alternative to metal bearings

xiros® plastic ball bearings do not need any external lubrication, are corrosion-resistant (if glass or plastic balls are used) and, during operation, are extremely quiet. This makes them a cost-effective alternative to metal ball bearings. Made from a mixture of tribo-polymers, the iglidur material plastic components are light, resistant to chemicals and non-magnetic. This ensures that they can be used safely in the areas of medicine, packaging, food processing, drive technology and other industries.  

Key benefits:

  • 100% self-lubricating and maintenance-free
  • Highly corrosion-resistant 
  • Options for extreme temperatures
  • FDA-compliant
  • Lightweight – 60% lighter than metal
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Overview of xiros® polymer ball bearings

Our xiros® plastic ball bearings

Deep groove ball bearings

deep groove ball bearing
  • Available in a variety of different plastic materials
  • Different ball bearing and cage options
  • Available wiin a variety of sizes
  • Find out more
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Fixed flange ball bearings

fixed flange ball bearing
  • FDA-compliant
  • Chemical resistant
  • Low moisture absorption
  • Find out more
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Pillow block ball bearings

pillow block ball bearings
  • Pivoting or fixed
  • FDA-compliant
  • Available with glass balls or stainless steel balls
  • Find out more
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Thrust ball bearings

thrust ball bearing
  • Chemical resistant
  • Low moisure absorption
  • Various sizes and materials available
  • Find out more
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Slewing ring ball bearings

slewing ring ball bearings
  • For high axial loads, water resistant
  • Available with stainless steel balls/glass balls
  • Suitable for applications in the food industry
  • Find out more
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Ball transfer units

ball transfer units
  • Low friction
  • Wear-resistant in dusty and dirty environments
  • Electrostatically dissipative option
  • Find out more
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The rust-proof alternative to metal ball bearings

xiros® plastic ball bearings according to DIN 625 require no lubrication, are corrosion-free (when using glass or plastic balls) and operate extremely quietly. This makes them a cost-effective alternative to metallic ball bearings. Made from a mixture of tribopolymers, the iglidur® material plastic components are light, resistant to chemicals and non-magnetic. This ensures safe use in medicine, packaging, food processing, drive technology and many other industries. Whereas the plastic of our xiros® ball bearings consists of a mixture of basic plastics, solid lubricants, fibres and filaments, the balls are typically made of glass, plastic or stainless steel. The balls are housed in a cage, which can consist of our own xirodur B180 material, polyamide (PA), polypropylene (PP) or polyether ether ketone (PEEK).

Request a xiros® sample

xiros plastic ball bearing sample Do you need a sample of a xiros® plastic ball bearing product? Complete the form below!
Order your free sample

Download the xiros® catalogue

xiros catalogue Dowload the xiros® plastic ball bearing catalogue here for the full range of products
Download here

xiros® service life calculator

With the xiros® service life calculator you can determine in a few steps a xiros® ball bearing suitable for your application and calculate its expected service life. You will be able to see:
  • Price and delivery
  • Order a free sample
  • Download a CAD of the part
  • Order your xiros® ball bearing or request further information from us with no minimum order. 
Find out the lifetime

Measurement requirements and installation recommendations

igus is one of just a few manufacturers worldwide who produce ball bearing rings in injection moulding. This offers users the following advantages:
  • High wear resistance due to the shape under high pressure
  • Homogeneous material distribution
  • Cost-effective production, leading to cheap sales prices
  • Simplification of ball bearing installation
Due to this manufacturing process, different rules apply to the measurement as well as the installation compared to metal or ceramic ball bearings. The outer ring of the polymer ball bearings has a conical shape. This simplifies the installation in a suitable housing (with the narrow side first). After press-fit into a housing machined to a H7 tolerance the bearing clearance is reduced. Therefore, the ball bearings must be measured over the entire width; starting at an angle of 90° from the injection point.
Tolerances and installation recommendations for xiros® polymer ball bearings

Frequently asked questions about xiros® plastic ball bearings.

What are ball bearings?

Ball bearings belong to the family of rolling bearings. Moving between an inner ring and an outer ring, rolling bodies reduce rotational friction and absorb radial and axial loads. Because the balls roll, they have a much smaller coefficient of friction than two flat surfaces that slide against each other. Due to the smaller contact surface between balls and rings, the ball bearings tend to have a lower load capacity for their size than other kinds of rolling bearings.

What advantages do the xiros® plastic ball bearings have over other ball bearings? 

Xiros® plastic ball bearings are lubrication and maintenance-free. They are lightweight, corrosion resistant and have a high media resistance.

Where are xiros® plastic ball bearings used?

There are lots of applications and industries that xiros® ball bearings are used, labelling machines, food and packaging and conveyors. 

Read more FAQ's


I would be happy to answer your questions

Shipping and consultation

In person:

Monday to Friday from 8am - 8pm.



The terms "igus", "Apiro", "chainflex", "CFRIP", "conprotect", "CTD", "drylin", "dry-tech", "dryspin", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-skin", "e-spool", "flizz", "ibow", "igear", "iglidur", "igubal", "igutex", "kineKIT", "manus", "motion plastics", "pikchain", "readychain", "readycable", "ReBeL", "speedigus", "triflex", "robolink", "xirodur", and "xiros" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries.

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention on this website. The products offered by igus® are those of igus® GmbH