Retaining Ring Internal 0.097 in Thk PK10 System of Measurement Not Applicable Location Style Internal Thickness 0.097 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 Not Applicable Free Inside Diameter Not Applicable Free Outside Diameter 2.9 in Clearance Diameter 2.625 in Material Steel Finish Plain Material Grade/Class Ungraded Tensile Strength Not Applicable Ring Type Retaining Ring