Track Roller Bore Diameter 250 mm Closure Double Sealed Duty Type Heavy Overall Length 79 mm Roller Diameter 290 mm Roller Head Type V-Groove Roller Material Alloy Steel Roller Width 76 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 188 600 N