1209 EKTN9/C3W64
1200 Series Self Aligning Ball Bearings
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1209 EKTN9/C3W64 Bearing Product Overview & Core Advantages
The 1209 EKTN9/C3W64 is a metric double row angular contact ball bearing engineered for high-performance applications requiring exceptional rigidity and precision. This bearing features a 1:12 tapered bore for secure shaft mounting and is pre-lubricated for immediate operation. Its double row design provides superior stiffness and enables it to handle significant combined loads (radial and axial) simultaneously. With optimized internal geometry and a nylon cage, it delivers reliable performance in demanding environments, making it ideal for applications where high rigidity and precise rotational accuracy are critical.
1209 EKTN9/C3W64 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1209 | Standard bearing designation: 45mm bore, 85mm OD, 19mm width |
| EK | Optimized internal design with reinforced shoulders and contact angles |
| TN9 | Nylon cage, glass fiber reinforced, suitable for high-speed operation |
| C3 | Greater than normal radial internal clearance for thermal expansion |
| W64 | Bearing is pre-lubricated with a specific high-performance grease |
1209 EKTN9/C3W64 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact construction provides significantly increased stiffness compared to single row bearings, enabling stable operation under heavy combined loads. The optimized contact angle effectively manages both radial loads and bidirectional axial loads.
- Precision & High-Speed Performance: The TN9 nylon cage reduces friction, weight, and inertial forces, contributing to a high limiting speed of 11,000 rpm. The C3 radial clearance accommodates thermal expansion during high-speed operation, preventing premature failure.
- Reliability & Long Service Life: Manufactured from high-grade chrome steel for both rings and balls, the bearing ensures durability and resistance to wear. The pre-lubrication (W64) provides immediate protection and reduces initial maintenance requirements.
- Secure Mounting: The 1:12 tapered bore allows for a precise and secure interference fit on the shaft, ensuring minimal slippage and maintaining positional accuracy under variable loads.
1209 EKTN9/C3W64 Bearing Typical Application Areas
The 1209 EKTN9/C3W64 is ideally suited for industrial machinery requiring robust performance and precision, including:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- General Industrial Machinery with high rigidity demands
