Retaining Ring Internal 0.093 in Thk PK10 System of Measurement Inch Location Style Internal Thickness 0.093 in Fits Shaft Diameter Not Applicable For Bore Diameter 2 5/8 in Fits Groove Diameter 2.781 in Fits Groove Width 0.103 in Fits Groove Depth 0.078 in Free Outside Diameter 2.91 in Clearance Diameter 2.17 in Material Steel Finish Zinc Plated Material Grade/Class Ungraded Tensile Strength 150 000 psi Ring Type Housing Ring Clearance Diameter Type Expanded