Metric External Heavy Duty Ring System of Measurement Metric Location Style External Thickness 2 mm Fits Shaft Diameter 26 mm For Bore Diameter Not Applicable Fits Groove Diameter 24.4 mm Fits Groove Width 2.15 mm Fits Groove Depth 0.8 mm Free Inside Diameter 23.6 mm Free Outside Diameter Not Applicable Clearance Diameter Not Applicable Material Spring Steel Material Grade/Class 1060-1090 Tensile Strength Not Applicable Ring Type External Heavy Duty Ring