C-Style Ring System of Measurement Inch Location Style External Thickness 0.025 in Fits Shaft Diameter 1/4 in For Bore Diameter Not Applicable Fits Groove Diameter 0.22 in Fits Groove Width 0.029 in Fits Groove Depth 0.015 in Free Inside Diameter 0.211 in Free Outside Diameter 0.311 in Clearance Diameter 0.33 in Material Stainless Steel Finish Plain Material Grade/Class Not Graded Tensile Strength Not Applicable Ring Type C-Style External Ring Thickness Tolerance +/-0.002 in