6305 TN9/C4
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6305 TN9/C4 Bearing Product Overview & Core Advantages
The 6305 TN9/C4 is a single row deep groove ball bearing engineered for high-performance applications requiring precision and reliability. This metric bearing features an open design and is manufactured to ABEC 1 | ISO P0 tolerance standards, ensuring consistent quality and smooth operation. Its key advantage lies in its optimized internal geometry and C4 radial internal clearance, which accommodates thermal expansion and enables stable operation under varying thermal conditions. The bearing is capable of handling significant radial dynamic loads (4631 lbf) while maintaining high limiting speeds (11,000 rpm), making it suitable for demanding industrial environments.
6305 TN9/C4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| TN9 | Nylon (Polyamide) cage, glass fiber reinforced | Enables higher operating speeds, reduced friction, and excellent acceleration characteristics |
| C4 | Greater than normal radial internal clearance | Accommodates shaft and housing fits, thermal expansion, and prevents preload in high-temperature applications |
6305 TN9/C4 Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The deep groove raceway design provides excellent radial load capacity while accommodating moderate axial loads in both directions, making it versatile for various mounting configurations.
High-Speed Performance: The TN9 nylon cage contributes to reduced rotational mass and friction, enabling the bearing to achieve limiting speeds of 11,000 rpm. This lightweight cage design also provides good acceleration and deceleration characteristics.
Thermal Management: The C4 radial clearance ensures reliable operation in applications with significant temperature variations (-30° to 120°C), preventing seizure or excessive preload due to thermal expansion.
Material Excellence: Manufactured from chrome steel for both rings and balls, providing high hardness, wear resistance, and dimensional stability under load. The open design allows for customized lubrication solutions based on specific application requirements.
6305 TN9/C4 Bearing Typical Application Areas
- Electric Motors - Main shafts and auxiliary drives requiring high-speed operation
- Industrial Pumps - Centrifugal and circulation pumps where thermal expansion must be accommodated
- Material Handling Equipment - Conveyor systems, rollers, and transmission components
- Agricultural Machinery - Implement drives and auxiliary systems
- General Industrial Machinery - Gearboxes, fans, and light-duty industrial drives
