Timken Tapered Bearing Cone, 2.125 X 0.8628

The 387S Timken Tapered Bearing Cone is a precision-engineered tapered roller bearing cone built to handle high radial loads in demanding equipment and drivetrain applications. Part of the Timken 385 series, it features a stamped steel cage and imperial sizing, with performance ratings suited for heavy-duty service.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 387S
• Brand: Timken
• Product Type: Tapered bearing cone
• Series: 385
• Design Units: Imperial
• Cage Type: Stamped steel
• Dynamic Radial Rating (C1): 42,200 lbf (188,000 N) (two-row, 1 million revs)
• Dynamic Radial Rating (C90): 10,900 lbf (48,700 N) (two-row, 90 million revs)
• Cone Bore (d): 2-1/4 in (57.150 mm)
• Cone Width (B): 0.8640 in (21.946 mm) (listed as 0.8628–0.8640 in)

Ideal For

• Replacing worn tapered bearing cones in axles, hubs, gearboxes, and heavy equipment
• Applications requiring a Timken 385 series cone with 2-1/4" bore
• Equipment needing dependable performance under high radial load
• Maintenance and rebuild work where matched tapered bearing components are critical