TIMKEN 28680 TAPERED ROLLER BEARING CONE

Description:

The Timken 28680 tapered roller bearing cone is a single-row tapered roller bearing cone designed for use with a compatible Timken bearing cup to support combined radial and axial loads in heavy-duty rotating equipment. It is commonly installed in industrial gearboxes, conveyor systems, mining machinery, agricultural equipment, wheel hubs, and power transmission systems where precise shaft alignment and high load capacity are required. Maintenance technicians, OEMs, and rebuild specialists use this bearing cone for equipment replacement, preventive maintenance, and machinery rebuilds.

Applications:

The Timken 28680 tapered roller bearing cone is engineered to operate with compatible Timken bearing cups such as the 28622 or 28621, providing accurate shaft positioning, reduced friction, and reliable performance under combined radial and thrust loads. Its separable cone design simplifies installation and maintenance, making it ideal for industrial gearboxes, conveyor drives, machine tools, axle assemblies, mining equipment, agricultural machinery, and material handling systems operating in demanding environments.

Technical Specifications:

• Manufacturer Part Number (MPN): 28680
• Manufacturer: Timken
• Product Type: Tapered roller bearing cone
• Bearing Type: Single-row tapered roller bearing cone (TS)
• Series: 28600
• Bore Diameter (ID): 2.1875 in (55.563 mm)
• Inner Ring Width (B): 0.9688 in (24.608 mm)
• Cage Material: Stamped steel
• Dynamic Radial Load Rating (C1): 27,700 lbf (123 kN)
• Dynamic Radial Load Rating (C90): 7,180 lbf (32 kN)
• Static Radial Load Rating (C0): 32,000 lbf (142 kN)
• Dynamic Thrust Rating (Ca90): 4,950 lbf (22 kN)
• K Factor: 1.45
• Geometry Factor (Cg): 0.0979
• Maximum Shaft Fillet Radius: 0.14 in (3.60 mm)
• Effective Center Location: -0.13 in (-3.3 mm)
• Weight: 1.1 lb (0.5 kg)
• Compatible Bearing Cups: Timken 28622, 28621, and other compatible 28600-series cups depending on the application.
• Function: Supports combined radial and axial loads when paired with a compatible Timken bearing cup.
• Features: Precision-ground raceways, separable cone assembly, stamped steel cage, optimized internal geometry, high load capacity, and suitability for demanding industrial applications.

Common Replacements:

• Timken 28680 tapered roller bearing cone
• SKF 28680 tapered roller bearing cone
• NTN 28680 tapered roller bearing cone