Track Roller Bore Diameter 125 mm Closure Double Sealed Duty Type Heavy Overall Length 71 mm Roller Diameter 125 mm Roller Head Type Flat Roller Material Alloy Steel Roller Width 68 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 148 100 N