Metric Basic External DIN471 System of Measurement Metric Location Style External Thickness 1.2 mm Fits Shaft Diameter 27 mm For Bore Diameter Not Applicable Fits Groove Diameter 25.6 mm Fits Groove Width 1.3 mm Fits Groove Depth 0.7 mm Free Inside Diameter 24.9 mm Free Outside Diameter Not Applicable Clearance Diameter Not Applicable Material Steel Material Grade/Class Not Graded Tensile Strength Not Applicable Ring Type External Ring Thickness Tolerance +0.000/-0.060 mm