The Timken Company NA48385 Taper Roller Bearing Cone

Description:

The Timken NA48385 tapered 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, conveyors, and heavy 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 NA48385 tapered roller bearing cone is designed for heavy-duty industrial applications where accurate shaft positioning and high load capacity are required. It is commonly used in mining equipment, steel mills, industrial gearboxes, conveyor systems, paper manufacturing equipment, and other rotating machinery that operates under combined radial and axial loads, helping improve equipment reliability and bearing service life.

Technical Specifications:

• Manufacturer: Timken
• Manufacturer Part Number (MPN): NA48385
• Product Type: Tapered roller bearing cone
• Bearing Type: Double-row tapered roller bearing cone (inner ring assembly)
• Series: TNA (tapered non-adjustable double row)
• Cone Part Number: NA48385
• Design Unit: Inch
• Bore Diameter: 5.2500 in (133.350 mm)
• Bearing Width Across Cones (T): 3.3750 in (85.725 mm, assembled)
• Inner Ring Width (B): 1.6875 in (42.8625 mm)
• Cage Type: Steel cage
• Material: High-grade bearing steel
• Load Type: Combined radial and axial loads
• Dynamic Radial Load Rating (C90): 16,500 lbf (73,300 N)
• Dynamic Two-Row Radial Load Rating (C90-2): 28,700 lbf (128,000 N)
• Dynamic Axial Load Rating (Ca90): 9,060 lbf (40,300 N)
• Weight: Approximately 16.45 lb (7.45 kg)
• Compatible Cup: Timken 48320D double cup
• Compatible Bearing Assembly: Timken NA48385/48320D

Common Replacements:

• Timken NA48385/48320D bearing assembly
• Timken NA48385-90001 bearing assembly
• Timken 48320D double cup