7006 Single Row Angular Contact Spindle Ball Bearing For Axial Radial Loads Ceramic Balls Si3N4 Premium ABEC-5 7006 Single Row Angular Contact Spindle Ball Bearings P5 Premium ABEC-5 Quality, bearing is Ceramic Balls Si3N4 and Phenolic Cage, this is a popular size that could be used in many applications that needs Cobined loads (Axial and Radial), Axial loads can be taken on one direction only. Bearing is made of Chrome Steel.