Ball Bearing 6208DU40 x 80 x 18 mmOne Bearing 6208-DU Ball Bearing inner diameter is 40mm, outer diameter is 80mm and width is 18mm, Ball Bearing 6208DU is a popular size that could be used in many applications, Bearing is made of Chrome Steel and can rotate up to 40,000 rpm, each 6208DU bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination, bearing is pre-lubricated with grease. Item: Radial Deep Ball Bearing Material: Chrome Steel Size: 40mm x 80mm x 18mm Type: Deep groove ball bearing Closures: Rubber Seals Lubrication: Self Lubricated (Grease) Quantity: One Bearing