Retaining Ring External 0.078 in Thk System of Measurement Inch Location Style External Thickness 0.078 in Fits Shaft Diameter 2 1/8 in For Bore Diameter Not Applicable Fits Groove Diameter 2.003 in Fits Groove Width 0.086 in Fits Groove Depth 0.061 in Free Inside Diameter 1.964 in Clearance Diameter 2.75 in Material Stainless Steel Finish Plain Material Grade/Class 18-8 Tensile Strength 150 000 psi Ring Type External Retaining Ring Clearance Diameter Type Expanded