Metric Heavy Duty Internal Ring System of Measurement Metric Location Style Internal Thickness 3 mm Fits Shaft Diameter Not Applicable For Bore Diameter 60 mm Fits Groove Diameter 63 mm Fits Groove Width 3.15 mm Fits Groove Depth 1.5 mm Free Inside Diameter Not Applicable Free Outside Diameter 64.2 mm Clearance Diameter Not Applicable Material Steel Material Grade/Class Not Graded Tensile Strength Not Applicable Ring Type Housing Ring Clearance Diameter Type Free OD