1208 EKTN9/C3
1200 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
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Performance
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1208 EKTN9/C3 Bearing Product Overview & Core Advantages
The 1208 EKTN9/C3 is a metric double row angular contact ball bearing engineered for high-performance applications requiring superior radial load capacity and operational stability. Featuring a 1:12 tapered bore for precise shaft mounting, this bearing delivers high rigidity through its double-row ball construction, making it ideal for machinery demanding exceptional precision and reliability. The optimized nylon cage (TN9) and C3 radial internal clearance ensure smooth operation at elevated speeds while accommodating thermal expansion.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1208 | Basic designation: 40mm bore, 80mm OD, 18mm width |
| EK | Optimized internal design with reinforced contact angles |
| TN9 | Glass fiber reinforced nylon cage, suitable for high-speed operation |
| C3 | Greater than normal radial internal clearance for thermal expansion |
1208 EKTN9/C3 Bearing Structural Features & Performance Benefits
Enhanced Load Capacity: The double row angular contact design provides superior radial load rating of 4478 lbf while effectively managing combined loads. This makes the bearing suitable for applications with significant radial forces and moderate axial components.
High-Speed Capability: The TN9 nylon cage reduces rotational mass and friction, enabling limiting speeds up to 11,000 rpm. Combined with factory-applied lubrication, this ensures stable performance in demanding high-speed environments.
Precision Tapered Bore: The 1:12 taper enables precise interference fit on tapered shafts, eliminating internal clearance and enhancing system rigidity. This feature is critical for applications requiring minimal runout and vibration.
Thermal Management: The C3 clearance accommodates thermal expansion during operation, preventing premature failure due to excessive preload in high-temperature applications (up to 110°C).
1208 EKTN9/C3 Bearing Typical Application Areas
- Machine Tool Spindles: Precision machining centers requiring high rigidity and speed
- Industrial Gearboxes: Power transmission systems with combined loading conditions
- Material Handling Equipment: Conveyor systems and automated guided vehicles
- Agricultural Machinery: Heavy-duty equipment requiring robust bearing solutions
- Electric Motors: High-speed motor applications with thermal expansion considerations
