4313 ATN9
Double Row Deep Groove Ball Bearings
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Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
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4313 ATN9 Bearing Product Overview & Core Advantages
The 4313 ATN9 is a double row angular contact ball bearing designed for applications requiring high load capacity and robust performance. This precision bearing excels at handling combined loads, simultaneously supporting significant radial loads and axial loads in both directions. Its compact double row design provides high rigidity and stable operation, making it suitable for machinery demanding reliability and durability. The open structure with a nylon cage facilitates effective lubrication and contributes to its high limiting speed.
4313 ATN9 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 4313 | Basic bearing designation indicating bearing dimensions: 65mm bore, 140mm OD, 48mm width |
| A | Contact angle of 30°, optimized for combined load carrying capacity |
| TN9 | Glass fiber reinforced nylon cage, enabling high-speed operation and reduced friction |
4313 ATN9 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row construction provides superior stiffness and can handle substantial combined loads, with a dynamic load rating of 27,225 lbf and static load rating of 23,850 lbf.
Optimized High-Speed Performance: The TN9 nylon cage ensures smooth operation at limiting speeds up to 8,000 rpm, reducing centrifugal forces and maintaining stability.
Precision Engineering: Manufactured to ABEC-1 tolerance class with controlled radial internal clearance (C0: 0.008mm to 0.028mm), ensuring consistent performance and accurate positioning.
Material Excellence: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability across the operating temperature range of -30°C to 110°C.
4313 ATN9 Bearing Typical Application Areas
The 4313 ATN9 is widely used in industrial applications requiring robust performance and high load capacity:
- Industrial Gearboxes and power transmission systems
- Material Handling Equipment including conveyors and pulleys
- Agricultural Machinery components and implements
- Industrial Pumps and medium-duty motor applications
- Construction Equipment where reliability under heavy loads is critical
