Rolling bearing cages with DLC (Diamond-like Carbon) coating improve performance of radial cylindrical roller bearings and radial deep groove ball bearings in harsh operating conditions. Amorphous DLC coating on steel cages increases resistance to breakage and lowers coefficient of friction between rolling bearing shoulders and cage, which helps prevent premature wear or abrasion. Depending on design of bearing, cage may be machined of solid steel with inner or outer ring guidance.
This story is related to the following:Bearing Cages