Timken NA-593 Double-Row Tapered Roller Bearing

The Timken NA-593 double-row tapered roller bearing is a high-capacity unit designed for combined radial and axial loads in heavy-duty rotating equipment. As a TNA (tapered double, non-adjustable) bearing, it uses a NA593 cone and 592D cup in an inch-design configuration, with a 3.5000 in bore, 6.0000 in outside diameter, a width across the cones of 3.2500 in, and a double cup width of 2.5000 in; it features a steel cage and high-grade bearing steel construction. It provides a dynamic radial load rating of 84,600 lbf (376 kN) (C1), a C90 rating of 12,600 lbf (56,000 N), a two-row radial rating of 21,900 lbf (97,500 N) (C90-2), and an axial rating of 9,530 lbf (42,400 N) (Ca90). Common replacements include NA593/592D, NA593-90033, NA593-90035, and NA593-90036, with installations in mining equipment, steel processing machinery, industrial gearboxes, rolling mills, and conveyor systems.