External Heavy Duty Spiral Ring System of Measurement Inch Location Style External Thickness 0.05 in Fits Shaft Diameter 1 5/16 in For Bore Diameter Not Applicable Fits Groove Diameter 1.232 in Fits Groove Width 0.056 in Fits Groove Depth 0.04 in Free Inside Diameter 1.218 in Free Outside Diameter Not Applicable Clearance Diameter Not Applicable Material Steel Finish Plain Material Grade/Class Not Graded Tensile Strength Not Applicable Ring Type External Heavy Duty Spiral Ring