Miniature Ball Bearing Bearing Industry Number 625 Bore Diameter 5 mm Closure Double Sealed For Environment Oily/Greasy Outer Ring Width 5 mm Outside Diameter 16 mm Ring Material Alloy Steel Seal Type Contact System of Measurement Metric ABEC Rating 1 Ball Material Alloy Steel Ball Material Grade AISI 52100 Bore Diameter Tolerance +0/-0.008 mm Cage Type Sealed Dynamic Radial Load Capacity 7 300 lbf Includes Retaining Ring No Lubricant Material Polyrex EM