Item: 608 ZZ Ball Bearing Type: Deep Groove Ball Bearing Material: Chrome Steel Closures: Metal Shields Lubrication: Greased Cage: Chrome Steel Dimensions: 8mm x 22mm x 7mm/Metric ID (inner diameter)/Bore: 8mm OD (outer diameter): 22mm Width/Height/thickness: 7mm Size: 8 x 22 x 7 mm Quantity: One Bearing