Retaining Ring Internal 4 mm Thk System of Measurement Metric Location Style Internal Thickness 4 mm Fits Shaft Diameter Not Applicable For Bore Diameter 185 mm Fits Groove Diameter 190 mm Fits Groove Width 4.15 mm Free Outside Diameter 194.5 mm Clearance Diameter 155.2 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