Timken 48320-D Double Cup Roller Bearing Assembly

Description:

The Timken 48320-D Roller Bearing Double Cup is a double outer cup designed for TDO tapered roller bearing assemblies that support heavy combined radial and axial loads in industrial rotating equipment. It is commonly installed in rolling mills, industrial gearboxes, mining equipment, paper processing machinery, construction equipment, and heavy-duty power transmission systems. Maintenance teams, OEMs, and industrial repair specialists use this double cup for bearing replacement, equipment rebuilds, retrofits, and preventive maintenance to ensure reliable performance under demanding operating conditions.

Applications:

The Timken 48320-D Roller Bearing Double Cup is engineered for heavy-duty industrial applications where high radial and axial load capacity, bearing rigidity, and resistance to overturning moments are essential. It is widely used in rolling mills, industrial gearboxes, mining and aggregate equipment, paper mills, construction machinery, and other heavy rotating equipment requiring precise load distribution, long service life, and dependable performance.

Technical Specifications:

• Manufacturer Part Number (MPN): 48320-D
• Manufacturer: Timken
• Product Type: Tapered Roller Bearing Double Cup
• Bearing Type: Double Outer Cup (TDO)
• Series: 48300
• Cup Part Number: 48320D
• Design Units: Inch
• Bearing Design: Tapered Roller Bearing Double Cup
• Outside Diameter (OD): 7.5000 in (190.500 mm)
• Double Cup Width (C): 2.8750 in (73.025 mm)
• Weight: 15.28 lb (6.93 kg)
• Maximum Housing Fillet Radius: 0.030 in (0.800 mm)
• Housing Frontface Backing Diameter (Da): 7.280 in (184.90 mm)
• K Factor: 1.82
• ISO e Factor: 0.32
• Y1 Factor: 2.10
• Y2 Factor: 3.13
• Geometry Factor (Cg): 0.121
• Typical Applications: Rolling Mills, Industrial Gearboxes, Mining Equipment, Heavy Machinery, Power Transmission Systems

Common Replacements:

• Timken 48393-48320D
• Timken 48320DC
• SKF Equivalent Tapered Roller Bearing Double Cup