Timken 64450-90031 Series 3.000 Roller Bearing Set

Timken 64450-90031 Series 3.000 roller bearing set is a preassembled tapered roller bearing set designed to support heavy combined radial and axial loads in demanding rotating equipment. This 64450-90031 assembly is commonly installed in industrial gearboxes, heavy-duty trailers, mining equipment, construction machinery, and power transmission systems where precise shaft alignment and high load capacity are essential. It features the 64450 cone and 64700D cup (design units: inch) with a 4.5000 in bore, 7.0000 in cup outside diameter, cone width of 1.6250 in, double cup width of 2.7500 in, and bearing width across cones of 3.6249 in; maximum shaft fillet radius is 0.140 in and maximum housing fillet radius is 0.030 in; shaft backing shoulder diameter (db) is 5.16 in and housing backing shoulder diameter (Da) is 6.81 in. The cage is stamped steel, and the related assembly number is 64450-90031. Common applications include wheel-end assemblies, industrial drives, conveyors, mining equipment, and construction machinery where dependable load distribution and extended bearing life are required. Common replacements include SKF 64450/64700D, NTN 64450/64700D, and KOYO 64450/64700D for cross-reference compatibility.