3303 ATN9
Double Row Angular Contact Ball Bearings
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3303 ATN9 Bearing Product Overview & Core Advantages
The 3303 ATN9 is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric bearing excels at simultaneously handling combined radial and axial loads from both directions. Its compact design and P6 (ABEC-3) tolerance class ensure exceptional running accuracy, making it ideal for demanding industrial environments where high rigidity and stable performance are critical.
3303 ATN9 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Performance Impact |
|---|---|---|
| A | 30° contact angle | Optimized for axial load capacity |
| TN9 | Nylon cage, glass fiber reinforced | Enables high-speed operation with reduced friction |
3303 ATN9 Bearing Structural Features & Performance Benefits
High Rigidity Design: The double row ball bearing configuration provides superior stiffness and moment load capacity compared to single row designs, ensuring precise shaft positioning.
Enhanced Load Capacity: With a dynamic load rating of 4860 lbf and static load rating of 2858 lbf, this bearing reliably handles significant combined loads in demanding applications.
High-Speed Performance: The TN9 nylon cage and optimized internal geometry contribute to a limiting speed of 14,000 rpm, making it suitable for high-rotation applications.
Precision Engineering: Manufactured to P6 tolerance class with precise bore (17mm) and outside diameter (47mm) dimensions, ensuring consistent performance and easy installation.
3303 ATN9 Bearing Typical Application Areas
The 3303 ATN9 is widely used in:
- Machine tool spindles and precision rotating components
- Industrial pumps and compressor systems
- Precision instruments and measuring equipment
- Material handling equipment and conveyor systems
- Automated machinery requiring high-speed, high-rigidity bearings
