The Timken Company 52637D Double Outer Roller Bearing Cup

Description:

The Timken 52637D Roller Bearing Cup is a double outer cup for a TDO (Tapered Double Outer) tapered roller bearing assembly, engineered to support heavy combined radial and axial loads in demanding industrial rotating equipment. Its double-cup configuration provides a wide effective bearing spread, making it ideal for applications subjected to significant overturning moments. It is commonly installed in industrial gearboxes, rolling mills, mining equipment, construction machinery, paper processing machinery, and heavy-duty power transmission systems.

Applications:

The Timken 52637D Roller Bearing Cup is designed for use with compatible Timken tapered roller bearing cones in TDO bearing assemblies. It is widely used in rolling mills, industrial gearboxes, mining and aggregate equipment, construction machinery, paper mills, and other heavy-duty machinery where high radial and axial load capacity, shaft rigidity, and precise alignment are critical. Compatible cone assemblies include Timken 52387, 52393, 52394X, and 52400A.

Technical Specifications:

• Manufacturer Part Number (MPN): 52637D
• Manufacturer: Timken
• Product Type: Tapered Roller Bearing Double Cup
• Bearing Type: TDO (Tapered Double Outer) Double Cup
• Series: 52000
• Cup Part Number: 52637D
• Design Units: Inch
• Bearing Design: Double Row Tapered Roller Bearing Cup
• Outside Diameter (OD): 6.3750 in (161.925 mm)
• Double Cup Width (C): 2.4375 in (61.913 mm)
• Weight: 12.67 lb (5.745 kg)
• Maximum Housing Fillet Radius: 0.030 in (0.800 mm)
• Housing Backing Shoulder Diameter – Frontface (Da): 6.08 in (153.92 mm)
• e Factor: 0.47
• K Factor: 1.23
• Y1 Factor: 1.42
• Y2 Factor: 2.12
• Geometry Factor (Cg): 0.152
• Compatible Cone Part Numbers: 52387, 52393, 52394X, 52400A
• Typical Applications: Rolling Mills, Industrial Gearboxes, Mining Equipment, Construction Machinery, Paper Processing Equipment, Heavy-Duty Power Transmission Systems.

Common Replacements:

• SKF Equivalent TDO Tapered Roller Bearing Double Cup
• NTN Equivalent TDO Tapered Roller Bearing Double Cup
• Timken 52637 (Single Cup version for different assembly configurations)