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Polymer ball bearings: xiros®

xiros polymer ball bearings according to DIN 625 are often a better alternative to metal ball bearings. Compared to their metal equivalents, they are lubrication-free, lighter and have a longer service life. The maintenance-free ball bearings have already proven themselves in many applications. The xiros service life calculator helps you find a suitable ball bearing for the most specialised applications.

Deep groove ball bearings and radial deep groove ball bearings from igus

Deep groove ball bearings

  • With different material properties
  • For temperatures up to +120°C
  • Also available with spherical outer diameter

More about deep groove ball bearings
xiros® fixed flange ball bearings

Fixed flange ball bearings

  • FDA-compliant
  • Chemical-resistant
  • Low moisture absorption

More about fixed flange ball bearings
Thrust bearings

Thrust bearings

  • Single or double row
  • With stainless steel balls or
  • anti-static with glass balls

More about thrust bearings
xiros® pillow block bearings

Pillow block bearings

  • Pivoting or fixed version
  • Glass or stainless steel balls
  • Also in FDA-compliant versions

More about pillow block bearings
xiros® slewing ring ball bearing

Slewing ring ball bearings

  • For high axial loads
  • Perfect with outer drive ring
  • With glass or stainless steel balls

More about slewing ring ball bearings
xiros® polymer ball transfer units

Ball transfer units

  • Load capacity of up to 1,000N possible
  • Lubrication-free and maintenance-free
  • Long service life

More about ball transfer units
xiros guide rollers and conveyor rollers

Guide rollers

  • Roller materials: aluminium, carbon or PVC
  • Lightweight and robust design
  • Low inertia

More about guide rollers
xiros® further designs

Other designs

  • Low moisture absorption
  • FDA-compliant components
  • Good axial stability

Buy further ball bearings designs


Polymer ball bearings are chemical-resistant


Detectable polymer ball bearings

FDA compliance

Polymer ball bearings with FDA compliance

Temperature-resistant up to +150°C

Polymer ball bearings are heat-resistant up to +120°C


Polymer ball bearings are corrosion-resistant

Low inertia

Polymer ball bearings with low inertia

More information on xiros ball bearings


In the industry's largest test laboratory, xiros ball bearings are put through their paces.

Online tools

Calculate the service life of xiros ball bearings quickly and easily.

xiros catalogue

The xiros ball bearings catalogue can be downloaded directly online!

xiros special bearings

An infinite number of possibilities with the individualised xiros ball bearings. We will find the right solution for you!


I would be happy to answer your questions personally

Shipping and consultation

In person:

Monday to Friday from 7 am - 8 pm.
Saturdays from 8 am- 12 pm.



The terms "igus", "Apiro", "CFRIP", "chainflex", "conprotect", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "easy chain", "e-chain", "e-chain systems", "e-loop", "e-ketten", "e-kettensysteme", "e-spool", "e-skin", "flizz", "ibow", "igear", "iglidur", "igubal", "kineKIT", "manus", "motion plastics", "pikchain", "plastics for longer life", "print2mold", "readycable", "readychain", "ReBeL", "robolink", "speedigus", "tribofilament", "triflex", "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, Bosh Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mentioned on this website. The products offered by igus® are those of igus® GmbH.