Track Roller Bore Diameter 80 mm Closure Double Sealed Duty Type Heavy Overall Length 46 mm Roller Diameter 80 mm Roller Head Type Flanged Roller Material Alloy Steel Roller Width 44 mm Rolling Element Rows 2 Seal Type Contact System of Measurement Metric Bearing Material Alloy Steel Bearing Material Grade 52100 Bearing Type Tapered Roller Dynamic Radial Load Capacity 63 500 N