Specification:Brand newMaterial: metalColor: approx.golden, steel colorDiameter (Inner): approx.8mmDiameter (Outer): approx.16mmThickness: approx.5mmFeature:High precision, high speed, wear small.Stable characteristic, high reliability.Compact structure, light weight and durable.Small frictional resistance, low power consumption, high mechanical efficiency.The size of the standardization, with the interchangeable, easy to install and remove, convenient maintenance.Can withstand both radial and thrust combination load.The bearing performance is relatively insensitive to the fluctuation of load.Package included:10pcs x thrust bearingNote:If there are burr, dust and other foreign matter in iron bearing, it will have noise and vibration in the process of operation, or even damage raceway and rolling body. So, in the installation of bearings, you must ensure that the mounting surface and the installation environment clean.Please allow 1-3mm errors due to manual measurement.Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.