Timken 48385 Tapered Single Row Roller Bearing Cone

Description:

The Timken 48385 Roller Bearing Cone is a precision single-row tapered roller bearing cone designed to support heavy combined radial and axial loads in demanding industrial rotating equipment. Featuring a 5-1/4 inch bore, it is commonly installed in industrial gearboxes, rolling mills, mining equipment, construction machinery, heavy-duty axles, and power transmission systems. Maintenance teams, OEMs, and industrial repair specialists use this bearing cone for equipment replacement, bearing rebuilds, retrofits, and preventive maintenance to ensure reliable operation and extended service life. 

Applications:

The Timken 48385 Roller Bearing Cone is engineered for heavy-duty applications requiring exceptional radial and thrust load capacity, precise shaft alignment, and long operating life. It is designed to mate with compatible Timken 48320, 48320D, and 48320DC bearing cups and is widely used in industrial gearboxes, rolling mills, mining and aggregate equipment, construction machinery, heavy-duty trailers, and other power transmission systems where dependable bearing performance is critical. 

Technical Specifications:

• Manufacturer Part Number (MPN): 48385
• Manufacturer: Timken
• Product Type: Tapered Roller Bearing Cone
• Bearing Type: Single Row Tapered Roller Bearing (TS)
• Cone Part Number: 48385
• Series: 48300
• Design Units: Inch
• Cage Material: Stamped Steel
• Bore Diameter (ID): 5.2500 in (133.350 mm)
• Bore Size: 5-1/4 in
• Inner Ring Width (B): 1.5625 in (39.688 mm)
• Dynamic Radial Load Rating (C90): 16,500 lbf (73,300 N)
• Dynamic Radial Load Rating (C1): 63,600 lbf (283,000 N)
• Two-Row Dynamic Radial Load Rating (C1): 111,000 lbf (492,000 N)
• Two-Row Dynamic Radial Load Rating (C90): 28,700 lbf (128,000 N)
• Dynamic Thrust Rating (Ca90): 9,060 lbf (40,300 N)
• Static Radial Load Rating (C0): 122,000 lbf (542,000 N)
• Maximum Shaft Fillet Radius: 0.140 in (3.600 mm)
• Shaft Backing Shoulder Diameter – Frontface (da): 5.59 in (142 mm)
• Shaft Backing Shoulder Diameter – Backface (db): 5.83 in (148 mm)
• Effective Center Location: -0.16 in (-4.1 mm)
• Geometry Factor (Cg): 0.121
• K Factor: 1.82
• Weight: 16.15 lb (7.33 kg)
• Compatible Bearing Cups: Timken 48320, 48320D, 48320DC
• Typical Applications: Industrial Gearboxes, Rolling Mills, Mining Equipment, Construction Machinery, Heavy-Duty Power Transmission Systems 

Common Replacements:

• SKF Equivalent Tapered Roller Bearing Cone
• NTN Equivalent Tapered Roller Bearing Cone
• NSK Equivalent Tapered Roller Bearing Cone