Timken,34300DE,Ball Bearing Insert

Description:

The Timken 34300DE is a double-row tapered roller bearing cone designed for use with compatible Timken double cups to form a complete TDO (Tapered Double Outer) bearing assembly. Featuring a 3.000-inch bore and 4.500-inch overall cone width, this double cone is engineered to support heavy combined radial and axial loads while providing excellent rigidity and resistance to overturning moments. It is commonly used in industrial gearboxes, rolling mills, mining equipment, paper mills, steel processing machinery, and other heavy-duty power transmission applications.

Applications:

The Timken 34300DE double tapered roller bearing cone is designed for heavy-duty industrial applications requiring high load capacity, accurate shaft alignment, and long service life. When paired with a compatible Timken double cup such as the 34478D, it forms a complete TDO bearing assembly suitable for gear drives, conveyors, mining machinery, rolling mills, construction equipment, and other rotating equipment subjected to high radial and thrust loads.

Technical Specifications:

• Manufacturer Part Number (MPN): 34300DE
• Manufacturer: Timken
• Product Type: Double tapered roller bearing cone
• Bearing Type: Double-row tapered roller bearing cone (TDO component)
• Series: 34000 Series
• Bore Diameter (ID): 3.000 in (76.200 mm)
• Overall Cone Width (B): 4.500 in (114.300 mm)
• Number of Rows: Double
• Compatible Double Cup Part Number: 34478D
• Design Units: Inch
• Cage Material: Stamped steel
• Bearing Material: Through-hardened bearing steel
• Maximum Shaft Fillet Radius: 0.030 in (0.80 mm)
• Dynamic Radial Load Rating (C1, Two-Row): 178,000 N (40,000 lbf)
• Dynamic Radial Load Rating (C90): 26,500 N (5,960 lbf)
• Static Radial Load Rating (C0): 136,000 N (30,600 lbf)
• Effective Center Location: 0.060 in (1.50 mm)
• Shaft Backing Shoulder Diameter (db): 3.39 in (86.0 mm)
• Weight: Approximately 9.5 lb (4.3 kg)
• Function: Serves as the inner double-cone component of a TDO tapered roller bearing assembly for supporting heavy combined radial and axial loads.
• Features: Double-row cone construction, separable design, precision-ground raceways, stamped steel cage, optimized roller geometry, high load capacity, and long service life in demanding industrial applications.

Common Replacements:

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