1213 EKTN9/C3W64
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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1213 EKTN9/C3W64 Bearing Product Overview & Core Advantages
The 1213 EKTN9/C3W64 is a metric double row angular contact ball bearing engineered for applications requiring high rigidity and precise operation. Its double row design enables it to support substantial combined loads, including significant radial loads and bidirectional axial loads, within a compact cross-section. Featuring a tapered bore (1:12 ratio) for secure shaft mounting, a nylon cage (TN9) for high-speed capability, and a C3 radial internal clearance, this bearing is optimized for high reliability in demanding industrial environments. It is pre-lubricated for immediate use and offers a broad operating temperature range.
1213 EKTN9/C3W64 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Advantage |
|---|---|---|
| EK | Optimized internal design | Enhances load capacity and operational smoothness. |
| TN9 | Nylon (Polyamide) cage, glass fiber reinforced | Facilitates high-speed performance, reduces friction, and is lightweight. |
| C3 | Greater than normal radial internal clearance | Ideal for applications with thermal expansion, such as in electric motors. |
| W64 | Bearing with solid oil | Provides maintenance-free operation and extended service life, suitable for applications where re-lubrication is difficult. |
1213 EKTN9/C3W64 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact construction provides superior stiffness and enables the bearing to handle significant combined radial and axial loads from both directions simultaneously, making it more compact than using two single row bearings.
- High-Speed Performance: The TN9 nylon cage is engineered for low mass and excellent sliding properties, contributing to a high limiting speed of 7,000 rpm and stable operation at high rotational velocities.
- Tapered Bore (1:12): Allows for precise axial positioning and a tight, interference fit on the shaft when mounted with an adapter sleeve or withdrawal sleeve, eliminating inner ring creep.
- Maintenance-Free Operation: The W64 solid oil filling ensures consistent lubrication over a long period, eliminating the need for re-lubrication and reducing maintenance costs.
- Optimized Internal Clearance: The C3 clearance accommodates differential thermal expansion between the shaft and housing, preventing preload and potential seizure in applications with rising operational temperatures.
1213 EKTN9/C3W64 Bearing Typical Application Areas
This double row angular contact ball bearing is ideally suited for a wide range of industrial machinery requiring high precision and reliability, including:
- Electric Motors and Generators
- Gearboxes and Transmission Systems
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
