Miniature Ball Bearing Bearing Industry Number 689 Bore Diameter 9 mm Closure Double Shielded Outer Ring Width 5 mm Outside Diameter 17 mm Ring Material Stainless Steel System of Measurement Metric Cage Material Steel Cage Type Ribbon Dynamic Radial Load Capacity 1 330 N Fillet Radius 0.2 mm Finish Chrome Plated Flange Diameter 19 mm Flange Type Non-Flanged Includes Retaining Ring No Lubricant Material Grease