TIMKEN 333A BEARING CUP 3.1486" OD X 0.8268" WIDTH

Description:

The Timken 333A is a single tapered roller bearing cup (outer ring) from the Timken 335 Series. Designed for use with compatible Timken tapered roller bearing cones such as the 342, 342A, or 337 to form a complete single-row tapered roller bearing assembly, it is engineered to support combined radial and axial loads while maintaining precise shaft alignment. Its separable cup design simplifies installation, adjustment, and maintenance, making it ideal for industrial gearboxes, wheel hubs, agricultural equipment, construction machinery, and general power transmission systems.

Applications:

The Timken 333A bearing cup is designed for demanding industrial applications requiring high load capacity and reliable performance under combined radial and thrust loads. When paired with a compatible Timken cone, it provides dependable operation in wheel bearing assemblies, industrial gearboxes, conveyor systems, machine tools, pumps, agricultural machinery, and other heavy-duty rotating equipment.

Technical Specifications:

• Manufacturer Part Number (MPN): 333A
• Manufacturer: Timken
• Product Type: Tapered roller bearing cup
• Bearing Type: Single-row tapered roller bearing outer ring (TS Cup)
• Series: 335 Series
• Cup Outside Diameter (OD): 3.1486 in (79.974 mm)
• Cup Width (C): 0.8268 in (21.001 mm)
• Design Units: Inch
• Compatible Cone Part Numbers: 342, 342A, 337 (application dependent)
• Bearing Material: Through-hardened bearing steel
• Maximum Housing Fillet Radius: 0.030 in (0.76 mm)
• Housing Backing Shoulder Diameter (Da): 3.03 in (76.96 mm)
• Housing Backing Shoulder Diameter (Db): 2.87 in (72.90 mm)
• e Factor: 0.27
• Y Factor: 2.20
• Geometry Factor (Cg): 0.0676
• Weight: Approximately 0.50 kg (1.0 lb)
• Function: Serves as the outer ring component of a single-row tapered roller bearing assembly supporting combined radial and axial loads.
• Features: Precision-ground raceway, separable cup design, optimized internal geometry, high load capacity, excellent durability, and long service life in demanding industrial applications.

Common Replacements:

• Timken 333A tapered roller bearing cup
• SKF equivalent tapered roller bearing cup (application dependent)
• NTN equivalent tapered roller bearing cup