Retaining Ring Internal 4 mm Thk System of Measurement Metric Location Style Internal Thickness 4 mm Fits Shaft Diameter Not Applicable For Bore Diameter 200 mm Fits Groove Diameter 205 mm Fits Groove Width 4.15 mm Free Outside Diameter 209.5 mm Clearance Diameter 170.2 mm Material Steel Finish Plain Material Grade/Class Ungraded Ring Type Housing Ring Clearance Diameter Type Compressed Material Quality Standards DIN 472 Pack Size Small Pack