Timken 387S-902B6 Bearing Set

Description:

The Timken 387S-902B6 bearing set is a double-row tapered roller bearing assembly used in heavy-duty rotating equipment and industrial power transmission systems. Commonly installed in industrial gearboxes, rolling mills, mining equipment, construction machinery, and material handling systems where high radial and axial loads require rigid shaft support. Maintenance teams, OEMs, and system integrators use this matched bearing assembly for equipment repair, bearing replacement, and drivetrain retrofits to improve reliability, simplify installation, and extend service life.

Applications:

The Timken 387S-902B6 bearing set is designed for fixed-position shaft applications requiring factory-set internal clearance and high load capacity. Its TDO (tapered double outer) configuration is commonly used in industrial gearboxes, mining machinery, rolling mills, heavy-duty conveyors, and other industrial rotating equipment where accurate shaft positioning, durability, and dependable bearing performance are essential.

Technical Specifications:

• Manufacturer Part Number (MPN): 387S-902B6
• Manufacturer: Timken
• Product Type: Tapered roller bearing assembly
• Bearing Type: Double-row tapered roller bearing (TDO)
• Cone Part Number: 387-S
• Cup Part Number: 384ED
• Bearing Series: 385
• Bore Diameter: 2.2500 in (57.150 mm)
• Outside Diameter: 3.9370 in (100.000 mm)
• Overall Bearing Width: 1.9369 in (49.197 mm)
• Cone Width: 0.8640 in (21.946 mm)
• Double Cup Width: 1.5620 in (39.675 mm)
• Dynamic Radial Load Rating (C1): 42,200 lbf (188,000 N)
• Dynamic Radial Load Rating (C90-2 Row): 10,900 lbf (48,700 N)
• Dynamic Thrust Load Rating (Ca90): 3,810 lbf (16,900 N)
• Cage Material: Stamped steel
• Weight: 3.12 lb (1.413 kg)

Common Replacements:

• SKF 387S-902B6
• NTN 387S-902B6
• KOYO 387S-902B6