Track Roller Bore Diameter 100 mm Closure Double Sealed Duty Type Heavy Overall Length 56 mm Roller Diameter 100 mm Roller Head Type Flat Roller Material Alloy Steel Roller Width 54 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 78 200 N