Track Roller Bore Diameter 50 mm Closure Double Sealed Duty Type Heavy Overall Length 33 mm Roller Diameter 75 mm Roller Head Type V-Groove Roller Material Alloy Steel Roller Width 32 mm Rolling Element Rows 2 Seal Type Contact System of Measurement Metric Bearing Material Alloy Steel Bearing Material Grade 52100 Bearing Type Radial Ball Dynamic Radial Load Capacity 15 140 N