The Timken Company NA132083 Roller Bearing Cone

Description:

The Timken NA132083 roller bearing cone 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, heavy conveyors, and other material handling systems. Maintenance teams, OEMs, and system integrators use this bearing cone for replacement, equipment overhaul, and reliability-focused maintenance in demanding industrial applications.

Applications:

The Timken NA132083 roller bearing cone is designed for heavy-duty industrial applications where high radial and thrust loads must be supported simultaneously. It is commonly used in mining equipment, steel mills, industrial gearboxes, rolling mills, and conveyor systems that require precise shaft alignment, high load capacity, and extended bearing service life under continuous operation.

Technical Specifications:

• Manufacturer: Timken
• Manufacturer Part Number (MPN): NA132083
• Product Type: Roller bearing cone
• Bearing Type: Double-row tapered roller bearing cone (inner ring assembly)
• Series: TNA (tapered non-adjustable double row)
• Cone Part Number: NA132083
• Cup Part Number: 132126D
• Related Assembly Number: NA132083-90015
• Design Unit: Inch
• Bore Diameter: 8.0000 in (203.200 mm)
• Outside Diameter (assembled): 12.5000 in (317.500 mm)
• Bearing Width Across Cones (T): 4.7500 in (120.650 mm)
• Double Cup Width (C): 3.5000 in (88.900 mm)
• Cage Type: Steel cage
• Material: High-grade bearing steel
• Load Type: Combined radial and axial loads
• Dynamic Radial Load Rating (C1): 207,000 lbf (919,000 N)
• Dynamic Radial Load Rating (C90): 30,800 lbf (137,000 N)
• Dynamic Two-Row Radial Load Rating (C90-2): 53,600 lbf (238,000 N)
• Dynamic Axial Load Rating (Ca90): 16,500 lbf (73,400 N)
• Compatible Cup: Timken 132126D double cup
• Compatible Bearing Assembly: Timken NA132083/132126D

Common Replacements:

• Timken NA132083/132126D bearing assembly
• Timken NA132083-90015 bearing assembly
• Timken 132126D double cup