Track Roller Bore Diameter 1/2 in Closure Double Sealed Duty Type Heavy Overall Length 1 1/16 in Roller Diameter 1 3/4 in Roller Head Type Flat Roller Material Alloy Steel Roller Width 1 in Rolling Element Rows 2 Seal Type Contact System of Measurement Inch Bearing Material Alloy Steel Bearing Material Grade 52100 Bearing Type Radial Ball Dynamic Radial Load Capacity 1 850 lbf Flange Diameter Not Applicable Flange Thickness Not Applicable Load Direction Radial Thrust