Retaining Ring Internal 0.062 in Thk PK25 System of Measurement Inch Location Style Internal Thickness 0.062 in Fits Shaft Diameter Not Applicable For Bore Diameter 1 7/8 in Fits Groove Diameter 1.989 in Fits Groove Width 0.068 in Fits Groove Depth 0.057 in Free Outside Diameter 2.072 in Clearance Diameter 1.48 in Material Steel Finish Zinc Plated Material Grade/Class Ungraded Tensile Strength 150 000 psi Ring Type Housing Ring Clearance Diameter Type Expanded