1201 ETN9/C3
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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1201 ETN9/C3 Bearing Product Overview & Core Advantages
The 1201 ETN9/C3 is a metric double row angular contact ball bearing engineered for applications requiring high rigidity and precise operation. This precision bearing is designed to accommodate significant combined loads, including radial and bidirectional axial forces, within a compact bearing size (12mm bore x 32mm OD x 10mm width). Its optimized internal geometry and C3 radial internal clearance make it an ideal solution for machinery demanding reliable performance under varying operational conditions.
1201 ETN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Performance Implication |
|---|---|---|
| E | Optimized Internal Design | Enhanced load capacity and improved stress distribution |
| TN9 | Nylon Cage, Glass Fiber Reinforced | Excellent high-speed performance, low friction, and corrosion resistance |
| C3 | Greater than Normal Radial Internal Clearance | Accommodates thermal expansion, suitable for applications with temperature variations |
1201 ETN9/C3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row construction provides superior radial and axial stiffness, enabling the bearing to handle substantial combined loads while maintaining precise shaft positioning. This makes it exceptionally suitable for applications requiring minimal deflection.
High-Speed Performance: The TN9 nylon cage contributes to lower rotational friction and excellent acceleration characteristics, supporting operation at limiting speeds up to 32,000 rpm. The cage's lightweight construction reduces centrifugal forces, enhancing overall high-speed capability.
Pre-optimized Internal Clearance: The C3 radial clearance is specifically selected for applications where thermal expansion or interference fits may reduce operational clearance, ensuring consistent performance across the specified temperature range.
Material Excellence: Manufactured from chrome steel for both rings and balls, the bearing delivers high durability and wear resistance, while the nylon cage provides quiet operation and resistance to many industrial chemicals.
1201 ETN9/C3 Bearing Typical Application Areas
- Electric Motors and small precision spindles
- Industrial Gearboxes and transmission systems
- Pumps and compressors requiring high-speed operation
- Material Handling Equipment with combined loading conditions
- Precision Instruments and medical equipment
- Agricultural Machinery components
