Timken 397 394A Tapered Roller Bearing Set

Description:

The Timken 397-394A tapered roller bearing set is a single-row tapered roller bearing assembly used in heavy-duty rotating equipment and industrial power transmission systems. Commonly installed in industrial gearboxes, conveyor systems, mining equipment, construction machinery, agricultural equipment, and heavy-duty axle assemblies where combined radial and axial loads require reliable bearing support. Maintenance teams, OEMs, and system integrators use this bearing set for equipment repair, bearing replacement, and drivetrain retrofits to maintain dependable machine performance and extended service life.

Applications:

The Timken 397-394A tapered roller bearing set is designed for industrial applications requiring precise shaft alignment and high load-carrying capacity under combined radial and thrust loads. It is widely used in industrial gearboxes, conveyor drives, mining machinery, construction equipment, agricultural machinery, and material handling systems where durable tapered roller bearing assemblies are essential for reliable operation.

Technical Specifications:

• Manufacturer Part Number (MPN): 397 / 394A
• Manufacturer: Timken
• Product Type: Tapered roller bearing set
• Bearing Type: Single-row tapered roller bearing (TS)
• Cone Part Number: 397
• Cup Part Number: 394A
• Design Units: Imperial
• Bore Diameter: 2.3622 in (60.000 mm)
• Outside Diameter: 4.3307 in (110.000 mm)
• Overall Bearing Width: 0.8661 in (21.999 mm)
• Cone Width: 0.8660 in (21.996 mm)
• Cup Width: 0.7411 in (18.824 mm)
• Cage Material: Stamped steel
• Dynamic Radial Load Rating (C1): 22,200 lbf (98,900 N)
• Static Radial Load Rating (C0): 28,100 lbf (125,000 N)
• Dynamic Thrust Load Rating (Ca90): 3,970 lbf (17,600 N)
• Weight: 2.0 lb (0.9 kg)

Common Replacements:

• SKF 397/394A
• NTN 397/394A
• KOYO 397/394A