4312 ATN9
Double Row Deep Groove Ball Bearings
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4312 ATN9 Bearing Product Overview & Core Advantages
The 4312 ATN9 is a double row angular contact ball bearing engineered for demanding applications requiring robust performance. This precision bearing is designed to accommodate combined loads, simultaneously handling significant radial loads and axial loads in both directions. Its double row design provides exceptional high rigidity, making it ideal for applications where shaft stability is critical. Manufactured to ABEC-1 tolerance standards, it ensures reliable operation and long service life in high-performance machinery.
4312 ATN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 4312 | Standard bearing series designation indicating the bearing dimensions: 60mm bore, 130mm OD, 46mm width. |
| A | Signifies a 30° contact angle, optimized for handling substantial axial loads. |
| TN9 | Indicates a glass fiber reinforced nylon cage. This lightweight cage design contributes to lower friction, reduced heat generation, and enhanced suitability for high-speed operation. |
4312 ATN9 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior stiffness and stability compared to single row bearings, effectively resisting moment loads and shaft deflection. With a dynamic load rating of 25,200 lbf and a static load rating of 22,050 lbf, it is built to handle demanding combined loads.
High-Speed Performance: The lightweight TN9 nylon cage minimizes centrifugal forces, allowing for a limiting speed of 8,500 rpm. This makes the 4312 ATN9 an excellent choice for high-speed applications.
Precision & Reliability: Manufactured from chrome steel for both rings and balls, and conforming to ABEC-1 precision class with a standard C0 radial internal clearance, this bearing ensures consistent performance, low noise, and minimal vibration.
Operational Versatility: The open seal type design allows for custom lubrication regimes. It features a wide operating temperature range from -30°C to 110°C, suiting various industrial environments.
4312 ATN9 Bearing Typical Application Areas
The 4312 ATN9 double row angular contact ball bearing is ideally suited for a wide range of industrial machinery where high rigidity and the ability to handle combined loads are essential. Common applications include:
- Machine Tool Spindles
- Gearboxes and Transmissions
- Industrial Pumps and Compressors
- Material Handling Equipment
- Electric Motors
