1209 EKTN9/C3
1200 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
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1209 EKTN9/C3 Bearing Product Overview & Core Advantages
The 1209 EKTN9/C3 is a double row angular contact ball bearing designed for exceptional performance in demanding applications. Featuring a tapered bore (1:12) and C3 radial internal clearance, this precision bearing delivers superior rigidity and the ability to accommodate combined loads (radial and axial) simultaneously. Its compact design and optimized internal geometry make it ideal for applications requiring high reliability and precise rotational accuracy.
1209 EKTN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1209 | Basic designation indicating bore diameter (45mm) and series |
| EK | Optimized internal design with reinforced structure |
| TN9 | Nylon cage, glass fiber reinforced, suitable for high speeds |
| C3 | Greater than normal radial internal clearance for thermal expansion |
1209 EKTN9/C3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides enhanced stiffness and enables the bearing to handle significant combined radial and axial loads. With a dynamic load rating of 5152 lbf and static load rating of 1755 lbf, it offers robust performance under demanding conditions.
High-Speed Performance: The TN9 nylon cage contributes to excellent high-speed capability, supporting a limiting speed of 11,000 rpm. The cage's lightweight construction reduces centrifugal forces and ensures smooth operation at elevated speeds.
Precision Tapered Bore: The 1:12 tapered bore allows for precise mounting and secure positioning on tapered shaft seats, ensuring optimal alignment and minimizing runout.
Optimized Internal Clearance: The C3 radial clearance accommodates thermal expansion in applications where operating temperatures may vary, preventing premature failure due to excessive preload.
1209 EKTN9/C3 Bearing Typical Application Areas
- Electric Motors and Industrial Gearboxes
- Pump Systems and Compressors
- Material Handling Equipment
- Agricultural Machinery
- Industrial Fans and Blowers
