Bearing Materials

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The bearing’s material is one of the most critical roles in the overall performance of the bearing. This page is dedicated to breaking down popular bearing steels, exotic bearing steels, and the best ceramic materials commercially available.


Many factors contribute towards determining the correct bearing material such as operating temperature, magnetism, radiation resistance, corrosion resistance, out-gassing properties, and a lot more. Steel bearings are the most common, although ceramic bearings are making increasing impacts in recent times.  


There are several different ceramic materials, each of which provide their own unique properties with different advantages and disadvantages. Their use in bearing and rolling element applications was introduced by the many space agencies and they continue to be at the forefront if engineering technology.


Components made of ceramic materials possess a number of unique properties, including enhanced resistance to temperatures and strong electrical insulation. These properties open a wider range of applications than was even thought possible before their introduction.


UNASIS Bearings has a vast network of distributors to reach all corners of the globe. No matter where you are, you will get the best service to go along with the best bearings.

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For more information, please call us today on +44 (0) 1235 527 770 or email [email protected]

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