Timken 8575/8520 Tapered Roller Bearing Cone and Cup

Description:

The Timken 8575/8520 tapered roller bearing cone and cup assembly is a precision single row tapered roller bearing set designed to support heavy combined radial and axial loads in demanding industrial applications. The matched cone (8575) and cup (8520) are engineered to operate together, providing accurate shaft positioning, high load capacity, and long service life in heavy rotating equipment. Commonly installed in rolling mills, mining machinery, industrial gearboxes, heavy conveyors, and power transmission systems, this bearing set is widely used by maintenance teams, OEMs, and system integrators for equipment repairs, replacements, retrofits, and preventive maintenance.

Applications:

The Timken 8575/8520 bearing assembly is designed for severe-duty applications requiring exceptional load-carrying capability and reliable performance under shock and continuous operation. It is commonly used in steel mills, mining equipment, aggregate processing machinery, heavy-duty gear drives, industrial conveyors, paper mills, and other large rotating equipment where precise shaft alignment and extended bearing life are essential.

Technical Specifications:

• Manufacturer Part Number (MPN): 8575 / 8520
• Manufacturer: Timken
• Product Type: Tapered Roller Bearing Cone and Cup Assembly
• Bearing Type: Single Row Tapered Roller Bearing (TS)
• Cone Part Number: 8575
• Cup Part Number: 8520
• Series: 8500 Series
• Design Units: Inch (Imperial)
• Material: Through-Hardened Chrome Steel
• Precision Rating: ABMA Class 2 (Standard)
• Bore Diameter (d): 9.2500 in (234.950 mm)
• Outside Diameter (D): 12.8750 in (327.025 mm)
• Total Bearing Width (T): 2.0625 in (52.388 mm)
• Cone Width (B): 2.0625 in (52.388 mm)
• Cup Width (C): 1.4375 in (36.513 mm)
• Dynamic Radial Load Rating (C1): 126,000 lbf (558,000 N)
• Dynamic Radial Load Rating (C90): 32,500 lbf (145,000 N)
• Static Radial Load Rating (C0): 240,000 lbf (1,070,000 N)
• Dynamic Axial Load Rating (Ca90): 22,700 lbf (101,000 N)
• K Factor: 1.44
• e Factor: 0.41
• Y Factor: 1.48
• Geometry Factor (Cg): 0.140
• Maximum Shaft Fillet Radius: 0.250 in (6.400 mm)
• Maximum Housing Fillet Radius: 0.130 in (3.300 mm)
• Weight: 27.2 lb (12.3 kg)
• Typical Applications: Rolling mills, mining equipment, industrial gearboxes, heavy conveyors, aggregate processing equipment, paper mills, and power transmission systems.

Common Replacements:

• SKF 8575/8520
• NTN 8575/8520
• KOYO 8575/8520