Track Roller Bore Diameter 125 mm Closure Double Sealed Duty Type Heavy Overall Length 71 mm Roller Diameter 165 mm Roller Head Type V-Groove 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