1303 ETN9
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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1303 ETN9 Bearing Product Overview & Core Advantages
The 1303 ETN9 is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric bearing features an open design with a nylon cage, enabling it to handle significant radial loads while maintaining stable operation. Its compact construction (17mm bore × 47mm OD × 14mm width) makes it ideal for space-constrained applications where high rigidity and consistent performance are essential.
1303 ETN9 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| E | Optimized internal design for enhanced load capacity and performance |
| TN9 | Nylon cage, glass fiber reinforced, suitable for high-speed applications |
1303 ETN9 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior radial stiffness and can handle radial dynamic load ratings of 2858 lbf, making it suitable for applications with significant mechanical stresses.
High-Speed Performance: The TN9 nylon cage reduces weight and friction, enabling limiting speeds up to 20,000 rpm while maintaining operational stability at high rotational velocities.
Precision Engineering: Manufactured from chrome steel for both rings and balls, this bearing offers excellent wear resistance and dimensional stability with tight tolerances (bore: -0.008mm to 0).
Temperature Resilience: Operates effectively within a temperature range of -30°C to 110°C, ensuring reliable performance across various environmental conditions.
1303 ETN9 Bearing Typical Application Areas
The 1303 ETN9 is widely used in:
- Electric motors and small precision machinery
- Industrial pumps and compressors
- Precision instruments and measuring equipment
- Automotive components requiring high-speed rotation
- Material handling equipment where reliable radial load support is critical
