3203 ATN9
Double Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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3203 ATN9 Bearing Product Overview & Core Advantages
The 3203 ATN9 is a double row angular contact ball bearing designed for applications requiring high precision and reliable performance under combined loads. This metric bearing features an open design with a nylon cage and pre-lubrication, enabling it to handle significant radial loads and bidirectional axial loads simultaneously. Its compact dimensions (17mm bore, 40mm OD, 17.5mm width) and P6 (ABEC-3) tolerance class make it ideal for high-speed operation up to 16,000 rpm while maintaining dimensional stability and rotational accuracy.
3203 ATN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 3203 | Basic bearing designation indicating double row angular contact construction with 17mm bore diameter |
| A | 30° contact angle optimized for combined radial and axial loading |
| TN9 | Nylon cage (polyamide) providing excellent high-speed performance and reduced friction |
3203 ATN9 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to withstand combined loads effectively. With a dynamic load rating of 3218 lbf and static load rating of 1980 lbf, it delivers reliable performance in demanding applications.
High-Speed Performance: The TN9 nylon cage ensures smooth operation at limiting speeds up to 16,000 rpm, while the optimized internal geometry minimizes friction and heat generation. The precision P6 tolerance guarantees consistent performance at high rotational speeds.
Material & Construction Excellence: Manufactured from chrome steel for both rings and balls, the bearing offers excellent wear resistance and durability. The open construction allows for efficient lubrication management while maintaining temperature stability from -30°C to 110°C.
3203 ATN9 Bearing Typical Application Areas
- Machine tool spindles and precision rotating components
- Industrial pumps and compressor systems
- Electric motors requiring high-speed operation
- Precision instruments and medical equipment
- Automated machinery and robotics applications
- Material handling equipment with combined loading requirements
