1311 ETN9
1300 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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1311 ETN9 Bearing Product Overview & Core Advantages
The 1311 ETN9 is a double row angular contact ball bearing engineered for exceptional performance in demanding applications. This precision bearing is designed to accommodate combined loads, simultaneously handling significant radial loads and moderate axial loads in both directions. Its compact design integrates two rows of balls, resulting in high rigidity and stable operation, making it ideal for applications requiring high reliability and precision. The bearing comes pre-lubricated and features a robust nylon cage, contributing to its high-speed capabilities and long service life.
1311 ETN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1311 | Standard bearing series designation, defining the bearing dimensions (55mm bore, 120mm OD, 29mm width). |
| E | Optimized internal design, typically providing enhanced load capacity and performance. |
| TN9 | Indicates the cage type: a glass fiber reinforced nylon cage. This design is lightweight, promotes smooth operation, and is suitable for high speeds and accelerations. |
1311 ETN9 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row construction provides superior radial stiffness, enabling the bearing to support heavy radial loads and moderate bidirectional axial loads without significant deflection. This makes it exceptionally stable under combined loads.
- Optimized High-Speed Performance: The lightweight and robust TN9 nylon cage minimizes centrifugal forces and friction, allowing for a high limiting speed of 7,500 rpm. The pre-applied lubrication ensures optimal performance from startup.
- Precision and Durability: Manufactured from high-grade chrome steel for both rings and balls, the bearing offers excellent wear resistance and fatigue life. The open seal design facilitates re-lubrication for extended service in appropriate environments.
- Operational Efficiency: With a wide temperature range of -30°C to 110°C and compliance with RoHS and REACH, this bearing is suitable for a variety of industrial conditions while meeting modern environmental standards.
1311 ETN9 Bearing Typical Application Areas
The 1311 ETN9 is ideally suited for a wide range of machinery and equipment requiring robust and precise rotational support, including:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Conveyors
- Agricultural Machinery
- General Industrial Machinery where high rigidity and combined load capacity are critical.
