1309KJ
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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1309KJ Bearing Product Overview & Core Advantages
The 1309KJ metric double row angular contact ball bearing represents a precision engineering solution designed for applications requiring high rigidity and reliable performance under combined radial and axial loads. Featuring an open design with tapered bore (1:12) for precise shaft mounting, this bearing delivers exceptional rotational accuracy and stability. Its double row construction provides superior load carrying capacity and stiffness compared to single row alternatives, making it ideal for demanding industrial environments where precision and reliability are paramount.
Model Code Detailed Explanation
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 1309 | Standard bore diameter 45mm, outside diameter 100mm | Standard bearing dimensions for interchangeability |
| K | Tapered bore 1:12 | Secure mounting on tapered shafts, reduced fretting |
| J | Steel cage pressed from steel sheet | Enhanced durability and high-speed capability |
1309KJ Bearing Structural Features & Performance Benefits
Double Row Design: The dual raceway configuration provides significantly increased radial load capacity and moment stiffness, enabling stable operation under heavy combined loads.
Precision Tapered Bore: The 1:12 taper ensures precise interference fit on matching shafts, eliminating clearance and improving rotational accuracy while distributing loads evenly.
Optimized Internal Clearance: Standard CN clearance rating ensures proper preload conditions and thermal expansion accommodation for consistent performance across the operating temperature range.
High-Grade Materials: Chrome steel rings and balls combined with pressed steel cage deliver excellent wear resistance and durability, supporting the limiting speed of 8,500 rpm.
1309KJ Bearing Typical Application Areas
- Industrial Gearboxes - Supporting shafts subjected to radial and axial forces
- Machine Tool Spindles - Providing high rigidity and precision rotation
- Material Handling Equipment - Handling combined loads in conveyor systems
- Agricultural Machinery - Durable performance in demanding environments
- Pump and Compressor Systems - Reliable operation under continuous radial and axial loads
