6220DDU Bearing 100x180x34 Sealed Large6220DDU Sealed Ball Bearing 100mm x 180mm x 34mm 6220DDU Sealed, radial, deep groove ball bearing, 6220DDU bearing is made from Chrome Steel with chrome steel balls and steel cage, bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, 6220DDU bearing is sealed and self lubricated,the quality is set to EMQ (electric motor quality) to ensure high speed, 6220DDU bearing is lubricated with grease. 6220DDU Ball