Retaining Ring Internal 0.078 in Thk PK10 System of Measurement Inch Location Style Internal Thickness 0.078 in Fits Shaft Diameter Not Applicable For Bore Diameter 2 3/8 in Fits Groove Diameter 2.517 in Fits Groove Width 0.086 in Fits Groove Depth 0.071 in Free Outside Diameter 2.63 in Clearance Diameter 2 in Material Steel Finish Zinc Plated Material Grade/Class Ungraded Tensile Strength 150 000 psi Ring Type Housing Ring Clearance Diameter Type Expanded