Timken 3720B Tapered Roller Bearings Flanged Cup

Description:

The Timken 3720B tapered roller bearing flanged cup is a single-row flanged tapered roller bearing cup used in tapered roller bearing assemblies for 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 accurate bearing positioning and seal alignment are required. Maintenance teams, OEMs, and system integrators use this bearing cup for equipment repair, bearing replacement, and drivetrain retrofits to ensure reliable load support and extended bearing life.

Applications:

The Timken 3720B tapered roller bearing flanged cup is designed for tapered roller bearing assemblies operating under combined radial and axial loads. Its flanged cup design provides accurate axial location and improved seal alignment, making it suitable for industrial gearboxes, conveyor drives, mining machinery, construction equipment, agricultural machinery, and material handling equipment requiring dependable bearing performance.

Technical Specifications:

• Manufacturer Part Number (MPN): 3720B
• Manufacturer: Timken
• Product Type: Flanged tapered roller bearing cup
• Bearing Type: Single-row tapered roller bearing cup
• Series: 3700
• Cup Outside Diameter: 3.6718 in (93.264 mm)
• Flange Outside Diameter: 3.8558 in (97.937 mm)
• Cup Width: 0.9375 in (23.813 mm)
• Flange Width: 0.1875 in (4.763 mm)
• Maximum Housing Fillet Radius: 0.130 in (3.30 mm)
• Housing Backing Shoulder Diameter (Da): 3.56 in (89.92 mm)
• Weight: 2.2 lb (1.00 kg)

Common Replacements:

• SKF 3720B
• NTN 3720B
• KOYO 3720B