Metric External Heavy Duty Ring System of Measurement Metric Location Style External Thickness 1.5 mm Fits Shaft Diameter 16 mm For Bore Diameter Not Applicable Fits Groove Diameter 15.2 mm Fits Groove Width 1.6 mm Fits Groove Depth 0.4 mm Free Inside Diameter 14.7 mm Free Outside Diameter Not Applicable Clearance Diameter Not Applicable Material Steel Material Grade/Class Not Graded Tensile Strength Not Applicable Ring Type Heavy Duty External Ring