Timken NA-593 Double-Row Tapered Roller Bearing

Description:

The Timken NA-593 double tapered roller bearing is used in double-row tapered roller bearing assemblies that support combined radial and axial loads in heavy-duty rotating equipment. Commonly installed in industrial gearboxes, rolling mills, mining machinery, conveyors, and heavy material handling systems. Maintenance teams, OEMs, and system integrators use this bearing assembly for replacement, equipment overhaul, and reliability-focused maintenance in demanding industrial applications.

Applications:

The Timken NA-593 double tapered roller bearing is designed for applications requiring high load capacity, accurate shaft positioning, and long service life under combined radial and thrust loads. It is commonly used in mining equipment, steel processing machinery, industrial gearboxes, rolling mills, and conveyor systems where dependable bearing performance is essential for continuous industrial operation.

Technical Specifications:

• Manufacturer: Timken
• Manufacturer Part Number (MPN): NA593
• Product Type: Double tapered roller bearing
• Bearing Type: TNA (tapered double, non-adjustable)
• Cone Part Number: NA593
• Cup Part Number: 592D
• Related Assembly Numbers: NA593-90033, NA593-90035, NA593-90036
• Design Unit: Inch
• Bore Diameter: 3.5000 in (88.900 mm)
• Outside Diameter: 6.0000 in (152.400 mm)
• Bearing Width Across Cones (T): 3.2500 in (82.550 mm)
• Double Cup Width (C): 2.5000 in (63.500 mm)
• Cage Type: Steel cage
• Material: High-grade bearing steel
• Load Type: Combined radial and axial loads
• Dynamic Radial Load Rating (C1): 84,600 lbf (376,000 N)
• Dynamic Radial Load Rating (C90): 12,600 lbf (56,000 N)
• Dynamic Two-Row Radial Load Rating (C90-2): 21,900 lbf (97,500 N)
• Dynamic Axial Load Rating (Ca90): 9,530 lbf (42,400 N)
• Weight: Approximately 12.93 lb (5.87 kg)

Common Replacements:

• Timken NA593/592D bearing assembly
• Timken NA593-90033 bearing assembly
• Timken 592D double cup