1203 ETN9
1200 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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1203 ETN9 Bearing Product Overview & Core Advantages
The 1203 ETN9 is a metric double row angular contact ball bearing engineered for high-performance applications requiring compact design and reliable operation. This bearing excels at handling combined radial and axial loads simultaneously, making it ideal for precision machinery. Its open design with Nylon cage (TN9) and factory lubrication ensures smooth operation at high speeds up to 24,000 rpm while maintaining dimensional stability.
1203 ETN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 1203 | Standard metric size designation (17mm bore, 40mm OD) | Standardized bearing dimensions for easy integration |
| E | Optimized internal design | Enhanced load capacity and performance |
| TN9 | Glass fiber reinforced Nylon cage | Excellent high-speed performance and low friction |
1203 ETN9 Bearing Structural Features & Performance Benefits
Double Row Design: Provides high rigidity and superior moment load capacity compared to single row bearings, ensuring stable operation under combined loads.
Precision Engineering: Manufactured with Chrome Steel rings and balls, delivering consistent performance with tight dimensional tolerances for precision applications.
High-Speed Capability: The TN9 Nylon cage reduces centrifugal forces and friction, enabling reliable operation at limiting speeds of 24,000 rpm.
Optimized Lubrication: Factory-applied lubricant ensures immediate operation and extends service life across a wide temperature range (-30° to 110°C).
1203 ETN9 Bearing Typical Application Areas
- Electric Motors and small precision spindles
- Industrial Pumps and compressors
- Precision Instruments and medical equipment
- Automation Systems and robotics
- Machine Tool auxiliary components
