4307 ATN9
Double Row Deep Groove Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
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4307 ATN9 Bearing Product Overview & Core Advantages
The 4307 ATN9 is a double row angular contact ball bearing designed for applications requiring high rigidity and reliable performance. This precision bearing excels at handling combined loads, simultaneously supporting substantial radial loads while accommodating axial loads in both directions. Its compact design and high rigid construction make it ideal for precision machinery and demanding industrial applications where space constraints and operational stability are critical factors.
4307 ATN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 4307 | Basic bearing designation indicating bearing dimensions: 35mm bore, 80mm OD, 31mm width |
| A | Contact angle optimized for combined load capacity |
| TN9 | Nylon cage design enabling high-speed operation and reduced friction |
Structural Features & Performance Advantages
High Rigidity Design: The double row construction provides exceptional stiffness, minimizing deflection under heavy loads and ensuring precise shaft positioning.
Superior Load Capacity: Engineered to handle significant combined loads, this bearing efficiently manages both radial forces and bidirectional axial loads in demanding applications.
Optimized High-Speed Performance: The TN9 nylon cage reduces rotational mass and friction, contributing to the bearing's impressive limiting speed of 14,000 rpm while maintaining operational stability.
Precision Engineering: Manufactured to ABEC-1 tolerance class with controlled radial internal clearance (C0: 0.006mm to 0.020mm), ensuring consistent performance and smooth operation.
4307 ATN9 Bearing Typical Application Areas
This versatile double row angular contact ball bearing finds extensive use in:
- Industrial Gearboxes and transmission systems
- Machine Tool Spindles requiring high precision and rigidity
- Material Handling Equipment and conveyor systems
- Agricultural Machinery and heavy-duty industrial equipment
- Electric Motors and industrial pumps
