Retaining Ring External 4 mm Thk PK2 System of Measurement Metric Location Style External Thickness 4 mm Fits Shaft Diameter 105 mm For Bore Diameter Not Applicable Fits Groove Diameter 101 mm Fits Groove Width 4.15 mm Free Inside Diameter 98 mm Clearance Diameter 125.8 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