Timken 30308 Tapered Roller Bearing

Description:

The Timken 30308 tapered roller bearing set is a matched single-row metric tapered roller bearing assembly consisting of the X30308 cone and Y30308 cup. Designed to support combined radial and axial loads, this bearing set provides precise shaft alignment, high load-carrying capacity, and dependable performance in demanding industrial applications. With a 40 mm bore, 90 mm outside diameter, and 25.25 mm overall width, it is commonly used in industrial gearboxes, wheel hubs, conveyors, electric motors, pumps, agricultural machinery, machine tools, and power transmission equipment.

Applications:

The Timken 30308 bearing set is engineered for applications requiring reliable performance under combined radial and thrust loads. Its separable cone-and-cup design simplifies installation, adjustment, and maintenance while ensuring accurate bearing preload. It is suitable for industrial gearboxes, wheel bearing assemblies, conveyor drives, electric motors, machine tools, pumps, agricultural equipment, and other heavy-duty rotating machinery.

Technical Specifications:

• Manufacturer Part Number (MPN): 30308
• Manufacturer: Timken
• Product Type: Tapered roller bearing set
• Bearing Type: Single-row metric tapered roller bearing assembly (TS)
• Components Included: Cone X30308 and Cup Y30308
• Series: 30308 Metric Series
• Bore Diameter (ID): 40 mm (1.5748 in)
• Outside Diameter (OD): 90 mm (3.5433 in)
• Overall Width (T): 25.25 mm (0.9941 in)
• Inner Ring Width (B): 23.00 mm (0.9055 in)
• Outer Ring Width (C): 20.00 mm (0.7874 in)
• Cage Material: Pressed steel
• Dynamic Radial Load Rating (C1): 117,000 N (26,300 lbf)
• Dynamic Radial Load Rating (C90): 30,300 N (6,820 lbf)
• Static Radial Load Rating (C0): 102,000 N (23,000 lbf)
• Dynamic Axial Load Rating (Ca90): 17,900 N (4,030 lbf)
• e Factor: 0.35
• K Factor: 1.69
• Y Factor: 1.74
• Geometry Factor (Cg): 0.0762
• Effective Center Location: -5.8 mm (-0.23 in)
• Maximum Shaft Fillet Radius: 2.03 mm (0.080 in)
• Maximum Housing Fillet Radius: 1.52 mm (0.060 in)
• Weight: Approximately 0.70 kg (1.6 lb)
• Function: Supports combined radial and axial loads while maintaining precise shaft alignment.
• Features: Precision-ground raceways, separable cone and cup design, pressed steel cage, optimized internal geometry, high load capacity, and long service life in demanding industrial applications.

Common Replacements:

• Timken 30308 tapered roller bearing set
• SKF 30308 J2/Q tapered roller bearing set
• NTN 4T-30308 tapered roller bearing set