Retaining Ring External 1.75 mm Thk PK50 System of Measurement Metric Location Style External Thickness 1.75 mm Fits Shaft Diameter 38 mm For Bore Diameter Not Applicable Fits Groove Diameter 36 mm Fits Groove Width 1.85 mm Free Inside Diameter 35.2 mm Clearance Diameter 50.2 mm Material Steel Finish Plain Material Grade/Class Ungraded Ring Type External Retaining Ring Clearance Diameter Type Expanded Material Quality Standards DIN 471 Pack Size Small Pack