Angular Contact Bearing A/C Sealed 40x62x24mm40x62x24 Double Row Angular Contact Air Conditioner Bearing 40x62x24 Double row Angular Contact Ball Bearing, each bearing has built in Rubber Seals to protect the bearing from dust or any possible contamination, this is self lubricated bearing (bearing is already greased). bearing is made from Chrome Steel. 40x62x24mm Ball Bearing Double Row Angular Contact Ball Bearing Closures: Rubber Sealed Inner Diameter: 40mm Outer Diameter: 62mm Width: 24mm