Timken 08125 Tapered Roller Bearing Cone 1.25 Inch Bore

Description:

The Timken 08125 tapered roller bearing cone is a precision inner race assembly designed for single row tapered roller bearing systems that support combined radial and axial loads in industrial and mobile equipment. Commonly installed in automotive wheel hubs, agricultural machinery, industrial gearboxes, conveyors, and light-to-medium duty power transmission systems where accurate shaft alignment and dependable load handling are required. Maintenance teams, OEMs, and system integrators use this bearing cone for equipment repairs, bearing replacements, retrofit projects, and preventive maintenance to maximize bearing performance and extend equipment service life.

Applications:

The Timken 08125 tapered roller bearing cone is engineered for use with the compatible Timken 08231 bearing cup in TS (Tapered Single) bearing assemblies. It is widely used in wheel-end assemblies, agricultural equipment, industrial drives, conveyors, and general rotating machinery requiring reliable load distribution, reduced friction, and long service life under combined radial and thrust loading.

Technical Specifications:

• Manufacturer Part Number (MPN): 08125
• Manufacturer: Timken
• Product Type: Tapered Roller Bearing Cone
• Bearing Type: Single Row Tapered Roller Bearing Cone (TS)
• Series: 08000 Series
• Design Units: Inch (Imperial)
• Material: Through-Hardened Chrome Steel
• Precision Rating: ABMA Class 2 (Standard)
• Bore Diameter (d): 1.2500 in (31.750 mm)
• Inner Ring Width (B): 0.5937 in (15.080 mm)
• Dynamic Radial Load Rating (C1): 7,130 lbf (31,700 N)
• Dynamic Radial Load Rating (C90): 1,850 lbf (8,220 N)
• Static Radial Load Rating (C0): 7,880 lbf (35,000 N)
• Dynamic Axial Load Rating (Ca90): 1,500 lbf (6,670 N)
• Maximum Shaft Fillet Radius: 0.040 in (1.000 mm)
• Shaft Backing Shoulder Diameter – Frontface (da): 1.42 in (36.00 mm)
• Shaft Backing Shoulder Diameter – Backface (db): 1.48 in (37.50 mm)
• K Factor: 1.23
• Geometry Factor (Cg): 0.0601
• Weight: 0.77 lb (0.351 kg)
• Compatible Bearing Cup: Timken 08231
• Typical Applications: Automotive wheel hubs, agricultural machinery, industrial gearboxes, conveyors, and general power transmission equipment.

Common Replacements:

• SKF 08125
• NTN 08125
• KOYO 08125