Metric Basic Internal DIN472 System of Measurement Metric Location Style Internal Thickness 1 mm Fits Shaft Diameter Not Applicable For Bore Diameter 18 mm Fits Groove Diameter 19 mm Fits Groove Width 1.1 mm Fits Groove Depth 0.5 mm Free Inside Diameter Not Applicable Free Outside Diameter 19.5 mm Clearance Diameter Not Applicable Material Steel Material Grade/Class Not Graded Tensile Strength Not Applicable Ring Type Metric Internal Ring Package Quantity 50