Timken 97900 Tapered Roller Bearing Outer Race

Description:

The Timken 97900 is a precision single tapered roller bearing cup (outer race) designed for TS (Tapered Single) bearing assemblies that support high combined radial and axial loads in heavy-duty industrial applications. Manufactured from premium through-hardened bearing steel, the cup provides accurate roller guidance, excellent load distribution, and extended service life under demanding operating conditions. It is commonly paired with compatible Timken tapered roller bearing cones, such as the Timken 97450 or 97500D, to form complete bearing assemblies for mining, rolling mills, industrial gear drives, heavy conveyors, and power transmission equipment. Maintenance teams, OEMs, and system integrators rely on the Timken 97900 for equipment repairs, bearing replacements, retrofit projects, and preventive maintenance.

Applications:

The Timken 97900 tapered roller bearing cup is designed for use with compatible Timken bearing cones to create complete TS or TDI bearing assemblies capable of handling heavy radial and thrust loads. It is widely used in rolling mills, mining machinery, industrial gearboxes, marine propulsion systems, paper mills, material handling equipment, and other heavy-duty rotating machinery where high load capacity, precise shaft positioning, and long bearing life are essential.

Technical Specifications:

• Manufacturer Part Number (MPN): 97900
• Manufacturer: Timken
• Product Type: Roller Bearing Cup
• Bearing Type: Single Row Tapered Roller Bearing Cup (TS)
• Series: 97000 Series
• Design Units: Inch (Imperial)
• Material: Through-Hardened Bearing Steel
• Cup Outside Diameter (D): 9.0000 in (228.600 mm)
• Cup Width (C): 1.5000 in (38.100 mm)
• ISO Factor (e): 0.74
• ISO Factor (Y): 0.81
• Geometry Factor (Cg): 0.131
• Maximum Housing Fillet Radius: 0.130 in (3.30 mm)
• Housing Backing Shoulder Diameter – Frontface (Da): 8.39 in (212.90 mm)
• Housing Backing Shoulder Diameter – Backface (Db): 7.76 in (197.10 mm)
• Weight: 18.10 lb (8.20 kg)
• Compatible Cones: Timken 97450, Timken 97500D (application dependent)
• Typical Applications: Rolling mills, mining equipment, industrial gearboxes, paper processing machinery, marine drives, conveyors, and heavy-duty power transmission systems.

Common Replacements:

• SKF 97900 Cup
• NTN 97900 Cup
• KOYO 97900 Cup