S698ZZ Sealed Ball Bearing 8mm x 19mm x 6mm S698ZZ Bearing metal shielded, radial, deep groove ball bearing,bearing is made of stainless Steel with stainless Steel balls and steel cage,S698ZZ bearing is closed with metal shields to protect the bearing from dust or any possible contamination,S698ZZ bearing is shielded and self lubricated,the quality is set to EMQ (electric motor quality),S698ZZ bearing is lubricated with grease.