The Timken Company 48320-D Tapered Roller Bearing Cup

Description:

The Timken 48320 Bearing Cup is a single tapered roller bearing cup designed to mate with a compatible tapered roller bearing cone in bearing assemblies that support combined radial and axial loads. It is commonly installed in industrial gearboxes, rolling mills, mining equipment, construction machinery, agricultural equipment, and heavy-duty power transmission systems. Maintenance teams, OEMs, and industrial repair specialists use this bearing cup for equipment replacement, bearing rebuilds, retrofits, and preventive maintenance to ensure reliable rotating equipment performance.

Applications:

The Timken 48320 Bearing Cup is engineered for industrial and mobile equipment requiring high load-carrying capacity and dependable rotational performance. It is commonly paired with compatible Timken tapered roller bearing cones in rolling mills, industrial gearboxes, mining and aggregate equipment, construction machinery, agricultural equipment, and heavy-duty axle assemblies where precise load distribution, reduced friction, and extended bearing life are essential.

Technical Specifications:

• Manufacturer Part Number (MPN): 48320
• Manufacturer: Timken
• Product Type: Tapered Roller Bearing Cup
• Bearing Type: Single Cup (TS)
• Series: 48300
• Cup Part Number: 48320
• Design Units: Inch
• Bearing Design: Tapered Roller Bearing
• Outside Diameter (OD): 7.5000 in (190.500 mm)
• Outer Ring Width (C): 1.3125 in (33.338 mm)
• Weight: 7.5 lb (3.40 kg)
• Maximum Housing Fillet Radius: 0.130 in (3.30 mm)
• Housing Frontface Backing Diameter (Da): 7.280 in (184.90 mm)
• Housing Backface Backing Diameter (Db): 6.970 in (177.04 mm)
• K Factor: 1.82
• ISO e Factor: 0.32
• Y Factor: 1.87
• Geometry Factor (Cg): 0.121
• Compatible Cone: Timken 48393
• Typical Applications: Rolling Mills, Industrial Gearboxes, Mining Equipment, Heavy Machinery, Power Transmission Systems

Common Replacements:

• Timken 48393 Cone
• SKF Equivalent Tapered Roller Bearing Cup
• NTN Equivalent Tapered Roller Bearing Cup