Premium 6208RS Bearing 40x80x18 Sealed6208RS Sealed Ball Bearing 40mm x 80mm x 18mm 6208RS Sealed Ball Bearing, 6208RS is made from Chrome Steel,6208RS is closed with rubber seals to protect the bearing from dust or any possible contamination, 6208RS bearing is self lubricated bearing, 6208RS bearing is already greased. 6208RS Ball Bearing Deep Groove Ball Bearing Closures: Rubber Sealed Material: Chrome Steel Dimensions: 40mm x 80mm x 18mm Metric ID (inner diameter) Bore: 40mm OD (outer