204KD Shielded Single Row Radial Bearing204KD Shielded Ball Bearing 20 x 47 x 14 mm 204KD Shielded Ball Bearing is radial, deep groove ball bearings,204KD 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,the 204KD inner diameter is 20mm, the 204KD outer diameter is 47mm and the 204KD width is 14mm, 204KD bearing is lubricated with grease.