6807-2RS Sealed Full Ceramic Ball Bearing Si3N4 Silicon Nitride 35mm x 47mm x 7mm 6807-2RS Full Ceramic Sealed Bearing, 6807-2RS Bearing is made of Si3N4 Ceramic and closed with Rubber Seals closure, Bearing inner diameter is 35mm, Bearing outer diameter is 47mm and Bearing width is 7mm.