What is a That's why we find them in many mechanical applications. Ball bearings can be with or without seals (water and dust). Our range is also composed of sealed ball bearings with, on both sides, sheet-reinforced acrylonitrile-butadiene rubber (NBR) contact seals. They are supplied ready for assembly and pre-greased.

has adopted the chrome steel material(Gcr15) in our productionof the bearing.