Metric Heavy Duty Internal Ring DIN984 System of Measurement Metric Location Style Internal Thickness 1.75 mm Fits Shaft Diameter Not Applicable For Bore Diameter 45 mm Fits Groove Diameter 47.5 mm Fits Groove Width 1.85 mm Fits Groove Depth 1.25 mm Free Inside Diameter Not Applicable Free Outside Diameter 48.5 mm Clearance Diameter Not Applicable Material Spring Steel Material Grade/Class 1060-1090 Tensile Strength Not Applicable Ring Type Internal Ring