211SZ 55x100x21 Sealed Ball Bearing211SZ Sealed Ball Bearing 55mm x 100mm x 21mm 211SZ Sealed Ball Bearing, 211SZ bearing is made from Chrome Steel, 211SZ bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, 211SZ bearing is a self lubricated bearing, 211SZ bearing is already greased. 211SZ ball bearing Size: 55mm x 100mm x 21mm Closures: Rubber Sealed Material: Chrome Steel Inner Diameter: 55mm Outer Diameter: 100mm Width: 21mm Dynamic