Timken 72188 Tapered Roller Bearing Cone Assembly

Description:

The Timken 72188 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 heavy-duty rotating equipment. Commonly installed in industrial gearboxes, mining equipment, construction machinery, heavy-duty trailers, and 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 service life.

Applications:

The Timken 72188 tapered roller bearing cone is engineered for use with compatible Timken bearing cups in demanding industrial and mobile equipment. It is widely used in wheel-end assemblies, industrial drives, conveyors, heavy-duty axles, mining machinery, and other rotating equipment requiring dependable load distribution, reduced friction, and long-lasting bearing performance under continuous operating conditions.

Technical Specifications:

• Manufacturer Part Number (MPN): 72188
• Manufacturer: Timken
• Product Type: Tapered Roller Bearing Cone
• Bearing Type: Single Row Tapered Roller Bearing Cone (TS)
• Cone Part Number: 72188
• Series: 72000 Series
• Design Units: Inch (Imperial)
• Bore Diameter (d): 1.8750 in (47.625 mm)
• Inner Ring Width (B): 1.2910 in (32.791 mm)
• Dynamic Radial Load Rating (C1): 37,100 lbf (165,000 N)
• Dynamic Radial Load Rating (C90): 9,620 lbf (42,800 N)
• Static Radial Load Rating (C0): 39,400 lbf (175,000 N)
• Dynamic Axial Load Rating (Ca90): 12,100 lbf (54,000 N)
• Maximum Shaft Fillet Radius: 0.030 in (0.800 mm)
• Shaft Backing Shoulder Diameter – Frontface (da): 2.59 in (65.80 mm)
• Shaft Backing Shoulder Diameter – Backface (db): 2.64 in (67.00 mm)
• K Factor: 0.79
• Geometry Factor (Cg): 0.0772
• Weight: 10.07 lb (4.568 kg)
• Compatible Bearing Cups: Timken 72487
• Typical Applications: Industrial gearboxes, mining equipment, construction machinery, heavy-duty trailers, power transmission systems

Common Replacements:

• SKF 72188
• NTN 72188
• KOYO 72188