Yoke Roller Bore Diameter 3 1/4 in Closure Double Sealed Duty Type Heavy For Environment High Temperature Overall Length 4 1/2 in Roller Diameter 8 in Roller Head Type Flat Roller Material Alloy Steel Roller Width 4 1/4 in Rolling Element Rows 2 Seal Type Contact System of Measurement Inch Bearing Material Alloy Steel Bearing Material Grade 52100 Bearing Type Tapered Roller Dynamic Radial Load Capacity 83 700 lbf Features Large Lubrication Reservoir