Miniature Ball Bearing Bearing Industry Number 624 Bore Diameter 4 mm Closure Double Sealed Outer Ring Width 5 mm Outside Diameter 13 mm Ring Material Alloy Steel Seal Type Contact System of Measurement Metric Cage Material Steel ABEC Rating 1 Cage Type Ribbon Dynamic Radial Load Capacity 1 300 N Fillet Radius 0.2 mm Finish Chrome Plated Flange Diameter 15 mm Flange Thickness 1 mm Includes Retaining Ring No Lubricant Material Grease