61800-2RS Sealed Ball Bearing 10mm x 19mm x 5mm 61800-2RS Sealed Ball Bearing is radial, deep groove ball bearing,61800-2RS bearing is made of 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,61800-2RS bearing is sealed and self lubricated,the quality is set to EMQ (electric motor quality) to ensure high speed,61800-2RS bearing is lubricated with greased.