6305 ETN9/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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6305 ETN9/C3 Bearing Product Overview & Core Advantages
The 6305 ETN9/C3 is a single row deep groove ball bearing engineered for exceptional performance in demanding industrial applications. This metric bearing is characterized by its ability to handle significant radial loads and moderate axial loads in both directions. Manufactured to ABEC 1 | ISO P0 tolerance standards, it ensures reliable operation and precise rotation. A key feature is its C3 radial internal clearance, which makes it particularly suitable for applications involving thermal expansion or where interference fits are used, providing stable performance under varying operational conditions.
Model Code In-Depth Explanation
| Code Segment | Technical Meaning |
|---|---|
| 6305 | Basic designation for a medium series, single row deep groove ball bearing with a 25mm bore. |
| E | Optimized internal design for higher load capacity. |
| TN9 | Nylon (polyamide) cage, glass fiber reinforced. Enables high-speed operation, is lightweight, and offers good sliding properties. |
| C3 | Radial internal clearance greater than Normal (C0). Ideal for applications with shaft interference fits or where operational heat generation is expected. |
6305 ETN9/C3 Bearing Structural Features & Performance Benefits
High-Performance Materials: Constructed from chrome steel for both rings and balls, this bearing provides excellent hardness, wear resistance, and long service life.
Enhanced Load Capacity (E-design): The optimized internal geometry, including a larger ball complement and optimized raceway contours, significantly increases the radial dynamic load rating (5845 lbf) and static load rating (3012 lbf).
Superior High-Speed Capability: The TN9 nylon cage is instrumental in achieving a high limiting speed of 16,000 rpm. Its lightweight nature reduces centrifugal forces, while its inherent lubricity minimizes friction.
Operational Versatility with C3 Clearance: The C3 clearance provides operational stability in applications prone to thermal expansion, preventing premature failure due to excessive preload.
Open Design for Custom Lubrication: As an open bearing (no seals/shields), it allows for the application of specific lubricants tailored to the operational environment, which is critical for extreme temperatures or specialized conditions.
6305 ETN9/C3 Bearing Typical Application Areas
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment (conveyors, fans)
- Agricultural Machinery
- General Industrial Machinery requiring robust and reliable ball bearing support
