TIMKEN 34300A TAPERED ROLLER BEARING CONE

Description:

The Timken 34300A is a single-row tapered roller bearing cone from the Timken 34000 Series. Designed for use with compatible Timken bearing cups such as the Timken 34478, 34492A, or 34500 to form a complete tapered roller bearing assembly, it is engineered to support combined radial and axial loads while maintaining precise shaft alignment. The "A" suffix denotes a dimensional or design variation within the same bearing series while maintaining interchangeability with its specified matching cups. This bearing is commonly used in industrial gearboxes, mining equipment, rolling mills, construction machinery, and heavy-duty power transmission systems.

Applications:

The Timken 34300A tapered roller bearing cone is designed for heavy-duty applications requiring reliable performance under combined radial and thrust loads. Its separable cone design simplifies installation, adjustment, and maintenance. When paired with a compatible Timken cup, it is commonly used in industrial gearboxes, conveyors, mining machinery, steel processing equipment, construction equipment, and other heavy rotating machinery.

Technical Specifications:

• Manufacturer Part Number (MPN): 34300A
• Manufacturer: Timken
• Product Type: Tapered roller bearing cone
• Bearing Type: Single-row tapered roller bearing cone (TS)
• Series: 34000 Series
• Compatible Cup Part Numbers: 34478, 34492A, 34500
• Bore Diameter (ID): 3.000 in (76.200 mm)
• Cone Width (B): 0.9060 in (23.012 mm)
• Design Units: Inch
• Cage Material: Stamped steel
• Bearing Material: Through-hardened bearing steel
• Dynamic Radial Load Rating (C1): 102,000 N (23,000 lbf)
• Dynamic Radial Load Rating (C90): 26,500 N (5,960 lbf)
• Static Radial Load Rating (C0): 136,000 N (30,600 lbf)
• Dynamic Axial Load Rating (Ca90): 20,500 N (4,600 lbf)
• e Factor: 0.45
• K Factor: 1.30
• Y Factor: 1.33
• Geometry Factor (Cg): 0.109
• Effective Center Location: 0.060 in (1.50 mm)
• Maximum Shaft Fillet Radius: 0.080 in (2.00 mm)
• Shaft Backing Shoulder Diameter (Frontface): 3.31 in (84.0 mm)
• Shaft Backing Shoulder Diameter (Backface): 3.39 in (86.0 mm)
• Weight: Approximately 2.1 lb (1.0 kg) when paired with 34478 cup; cone only weighs approximately 1.0 kg (2.2 lb)
• Function: Serves as the inner cone component of a tapered roller bearing assembly supporting combined radial and axial loads.
• Features: Separable cone design, precision-ground raceways, stamped steel cage, optimized roller geometry, high load capacity, and long service life for demanding industrial applications.

Common Replacements:

• Timken 34300A tapered roller bearing cone
• SKF equivalent tapered roller bearing cone (application dependent)
• NTN equivalent tapered roller bearing cone