61911-2RS Ball Bearing 55x80x13mm - Rubber Sealed61911 2RS Sealed Ball Bearing 55mm x 80mm x 13mm 61911 2RS Sealed Ball Bearing, 61911 2RS bearing is made from chrome steel,61911 2RS bearing has Rubber seals to protect the bearing from dust or any possible contamination, 61911 2RS is self lubricated bearings, 61911 2RS is already greased. 61911 2RS Ball Bearing Deep Groove Radial Ball Bearing Size: 55mm x 80mm x 13mm Inner Diameter (ID): 55mm Outer Diameter (OD): 80mm Width: 13mm Quality: Electric