Track Roller Bore Diameter 150 mm Closure Double Sealed Duty Type Heavy Overall Length 73 mm Roller Diameter 190 mm Roller Head Type V-Groove Roller Material Alloy Steel Roller Width 70 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 159 200 N