Miniature Ball Bearing Bearing Industry Number 686 Bore Diameter 6 mm Closure Double Sealed Outer Ring Width 3.5 mm Outside Diameter 13 mm Ring Material Alloy Steel Seal Type Contact System of Measurement Metric Cage Material Steel ABEC Rating 1 Ball Material Alloy Steel Ball Material Grade AISI 52100 Dynamic Radial Load Capacity 243 lbf Flange Diameter Not Applicable Flange Thickness Not Applicable Flange Type Non-Flanged Includes Retaining Ring No Lubricant Material Grease