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igus® Ireland

51A Caswell Road


Northampton NN4 7PW

+44 1604 677240
igus® Ltd.

Caswell Road

Northampton, NN4 7PW

01604 677240

Ball bearings made of polymer: 100% lubrication-free

Plastic ball bearing
Ball bearings replace sliding friction with rolling friction, allowing the rotational movement to take place with low resistance. As a rule, ball bearings must be lubricated to ensure that they function correctly. xiros plastic ball bearings require no additional lubrication, are corrosion-free and operate extremely quietly. This makes them a cost-effective alternative to metallic ball bearings. The components, which consist of a tribopolymer mixture, are lightweight, resistant to chemicals and optionally non-magnetic. This ensures safe use in medicine, packaging, food processing, drive technology and many other industries.Our xiros ball bearings consist of a combination of basic plastics, solid lubricants, fibres and filaments. The balls used are usually made of stainless steel, glass or plastic. These are mounted in a cage, which can be made from igus's own xirodur materials, PA, PP or PEEK.
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What you will find on this page
Ball bearing types at igus®

What advantages do our plastic ball bearings offer?

Heat-resistant plastic ball bearings

Heat-resistant / temperature-resistant

Depending on the application, our ball bearings are suitable for ultra-low and high temperatures. These specifications make it possible to dispense with expensive special lubricant, which are essential for metal ball bearings. The performance of these ball bearings has been tested and confirmed in numerous tests in the xiros® test laboratory, even at extremely low temperatures down to -100°C.

For applications with high heat loads, we offer heat-resistant ball bearings up to +150°C for long-term use.
Chemical-resistant ball bearings

Chemical resistance

The plastics developed by igus® enable xiros® ball bearings to run perfectly even when in contact with aggressive chemicals. The specified resistance and calculated service life are based on data from our ball bearing test laboratory.

Our plastic ball bearings make it possible to dispense with costly special lubricants, which are required for applications exposed to aggressive chemicals. This offers considerable advantages over conventional metal ball bearings.
Rustproof ball bearings made of plastic

Virtually rustproof

Plastic ball bearings have a decisive advantage over those made of metal: They are extremely corrosion-free.
Even when used in corrosive environments, the xiros® ball bearings maintain their smooth running and long service life - with low maintenance requirements.

Metal ball bearings corrode more quickly, seize up and, in the worst case, cause the machine to fail, which can lead to high maintenance costs.
Lightweight ball bearings made of plastic

Particularly lightweight

Metal ball bearings are robust - and heavy. xiros ball bearings offer the perfect alternative for a wide range of applications, as plastic ball bearings are lightweight, reliable and durable.

Plastic ball bearings are often used in the automotive industry and aerospace engineering. Wherever lightweight is important, our light plastic ball bearings are ideal.
FDA-compliant plastic ball bearings


Ball bearings made of FDA-compliant plastics are used wherever components come into contact with food or are used in sterile areas.

Thanks to the FDA-approved plastics developed by igus, which also work completely without additional lubricants, xiros ball bearings are ideal for applications in food, beverage and medical devices.
Non-magnetic ball bearings


The non-magnetic plastic ball bearings are the first choice wherever freedom from metal is required. The xiros range includes both pure plastic ball bearings and variants with glass balls, which are ideal for applications where there must be no metal.

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
Contact an expert
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
Visit the shop

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

How do I request my customised special part?

We know that it can't always be the catalogue part.
We therefore offer a service for customised ball bearing special parts that deviates from the DIN standard for your individual application. From the idea to the solution: endless possibilities thanks to xiros®. 

Request your custom part
Special ball bearing parts

Ball bearing material from igus

Ball bearing material

Our ball bearing materials are suitable for a wide range of applications and are characterised by a wide variety of advantages. From cost-effective all-rounders and heat specialists to materials with the best specifications in terms of chemical resistance. You can also find out more about the materials of the ball bearing balls.

Our new ball bearing products

We are constantly working on the further development of existing products and innovations in order to improve the technology of your application and reduce costs. Stay up to date at all times.
New ball bearing products from igus

Online configuration for plastic ball bearings

Calculate the service life of ball bearings

The product range of xiros plastic ball bearings is particularly distinguished by the wide variety of types and materials. Small ball bearings are used in model making and medical technology, among others. Our ball bearings successfully serve a wide range of applications - special parts manufactured according to customer requirements are also part of the product range.

Thanks to extensive tests in the xiros test laboratory, the service life of igus ball bearings can be accurately predicted even under difficult conditions - even for individual applications.

Where are ball bearings used? And what types are there?

Ball bearings have become indispensable in mechanical engineering. There are various ball bearing designs for which mass and technical composition of the components depend on the specifications of the industrial application. The following list shows the most commonly used ball bearings and where they are used.

Deep groove ball bearing according to DIN 625:

This type of ball bearing absorbs radial forces and is used wherever components rotate. In the automotive industry, for example, deep groove ball bearings can be found in the chassis, where they support and guide the axes. There is always radial force when the axis rotates.Angular ball bearing based on DIN 628:

This bearing is designed to support both radial and axial forces in one direction. Angular ball bearings make higher speeds possible and reduce friction for a wide range of loads. Angular ball bearings are used in the bicycle industry, the automotive sector or, for example, in the spindles of machine tools.

Self-aligning ball bearing based on DIN 630:

This type of ball bearing is generally used in applications with long shafts. This is associated with the assembly problems arising from holes in the housing. Axial forces are important in self-aligning ball bearings. These forces need to be kept low, since the running grooves in the outer race have limited contact surfaces for the rolling elements. This type is used for general-purpose mechanical engineering.Thrust bearing according to DIN 711:

As the name of the bearing suggests, this ball bearing is designed to support axial loads. They are available in a single-row or double-row version and are already in use in numerous applications in the medical technology and packaging industries.

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

Around the world, customers already rely on xiros polymer ball bearings
Sören Meissner, Design Engineer at Krones AG "The smooth running of the ball bearings in the guide rollers is very important for us. In the past, we used metallic bearings here. However, these did not run smoothly enough, which meant that the entire roll sometimes stopped and the label tape just slipped over it."

Sören Meissner | Design Engineer Labelling Technology at Krones AG
Ball bearing applications at a glance Whether packaging, textile industry, testing technology and quality assurance or model making: xiros polymer ball bearings are already successfully used in a wide variety of industries; they are especially popular wherever conventional metal ball bearing solutions are not suitable.Here is the application overview

Ball bearing wiki: Technical information about ball bearings


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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