204SFF Shielded Single Row Ball Bearing204SFF Shielded Ball Bearing 20 x 47 x 14 mm 204SFF Shielded Ball Bearing is radial, deep groove ball bearings,204SFF bearing is made from Chrome Steel, bearing is closed with 2 Metal Shields, one Shield from each side to protect the bearing from dust or any possible contamination, bearing is sealed and self lubricated, 204SFF inner diameter is 20mm, 204SFF outer diameter is 47mm and width is 14mm, 204SFF bearing is lubricated with grease. 204 SFF