1308 EKTN9/C3
1300 Series Self Aligning Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
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1308 EKTN9/C3 Bearing Product Overview & Core Advantages
The 1308 EKTN9/C3 is a double row angular contact ball bearing designed for applications requiring high rigidity and combination load capacity. Featuring a 1:12 tapered bore and C3 radial internal clearance, this precision bearing delivers exceptional performance in demanding industrial environments. Its double row construction enables simultaneous handling of substantial radial loads while maintaining dimensional stability, making it ideal for high-reliability applications where space constraints and precise positioning are critical requirements.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning |
| 1308 | Standard bearing designation with 40mm bore diameter |
| EK | Optimized internal design with reinforced structure |
| TN9 | Nylon cage, glass fiber reinforced for high-speed operation |
| C3 | Greater than normal radial internal clearance for thermal expansion |
1308 EKTN9/C3 Bearing Structural Features & Performance Benefits
High Rigidity Design: The double row ball bearing configuration provides enhanced stiffness through optimized contact angles and raceway geometry, ensuring minimal deflection under heavy combination loads.
Superior Load Capacity: Engineered to handle significant radial loads (7605 lbf dynamic rating) while accommodating axial loads in both directions, making it suitable for complex loading conditions.
High-Speed Performance: The TN9 nylon cage with glass fiber reinforcement enables stable operation at limiting speeds up to 9,500 rpm, reducing friction and heat generation.
Precision Tapered Bore: The 1:12 tapered bore facilitates precise mounting and secure fit on tapered shafts, ensuring optimal alignment and load distribution.
Optimized Internal Clearance: C3 clearance provides additional space for thermal expansion in high-speed or high-temperature applications, maintaining performance stability.
1308 EKTN9/C3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Machine Tool Spindles requiring high precision and rigidity
- Material Handling Equipment with combination loading requirements
- Agricultural Machinery and heavy-duty equipment
- Pump and Compressor Systems demanding reliable bearing performance
- Electric Motor Applications with tapered shaft mounting
