Timken 28580/28521 Tapered Roller Bearing Set

The Timken 28580/28521 single-row tapered roller bearing set combines the 28580 cone and 28521 cup to deliver precise shaft positioning under combined radial and axial loads. This matched, separable cone-and-cup assembly features precision-ground raceways, a stamped steel cage, and a high load capacity, making it suitable for heavy-duty industrial applications such as industrial gearboxes, conveyor drives, axle assemblies, machine tools, agricultural machinery, mining equipment, wheel hubs, and material handling systems requiring reliable alignment and low friction. Bearings are designed to support combined radial and thrust loads with the following verified specs: bore 2.0000 in (50.800 mm); outside diameter 3.6250 in (92.075 mm); overall width 0.9688 in (24.608 mm); cone width 1.0000 in (25.400 mm); cup width 0.7813 in (19.845 mm); dynamic radial load rating (C1) 22,200 lbf (98.9 kN); dynamic radial load rating (C90) 5,770 lbf (25.7 kN); static radial load rating (C0) 29,200 lbf (130 kN); dynamic thrust rating (Ca90) 3,720 lbf (16.6 kN); weight 1.6 lb (0.7 kg). Its separable design simplifies installation and maintenance, and it is commonly used by maintenance professionals, OEMs, and rebuild specialists for equipment replacement, preventive maintenance, and machinery overhauls. Common replacements include Timken, SKF, and NTN 28580/28521 tapered roller bearing sets.