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KOPRO rings are metal washers resistant against wear, designed to prevent the infiltration of fluids and/or impurities into the application. These are normally used in applications that work in extreme conditions, but they can also be used in any existing application thanks to their minimal overall height. Another very important characteristic relates to the fact that these significantly increase the operational life of the application onto which they are mounted.

KOPRO rings can be used in various contexts, such as for example:
* agricultural machinery;
* electric motors;
* electric tools;
* vehicle technology;
* etc.
AV / JV KOPRO rings for:
Single row deep groove ball bearings
Single row cylindrical roller bearings
Single row spherical roller bearings
Double row self-aligning roller bearings
Single row tapered roller bearings