1213KJC3
1200 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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1213KJC3 Bearing Product Overview & Core Advantages
The 1213KJC3 is a metric double row angular contact ball bearing engineered for demanding industrial applications requiring high radial load capacity and precision performance. Featuring a 1:12 tapered bore for secure shaft mounting, this bearing delivers exceptional rigidity and stability under combined loads. Its open design with C3 radial internal clearance accommodates thermal expansion, making it ideal for high-speed operations. Manufactured from premium chrome steel components and pre-lubricated for immediate use, it ensures reliable performance in precision machinery and heavy-duty equipment.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1213 | Standard bore diameter (65mm) and series designation |
| K | 1:12 tapered bore for precise shaft fitting |
| J | Steel cage construction for enhanced durability |
| C3 | Radial internal clearance greater than normal for thermal expansion compensation |
1213KJC3 Bearing Structural Features & Performance Benefits
Double Row Design: The dual raceway configuration provides superior rigidity and load distribution, effectively handling high radial loads (7898 lbf dynamic rating) while maintaining operational stability.
Tapered Bore Mounting: The 1:12 taper bore ensures secure interference fit with adapter sleeves, eliminating slippage and maintaining precise alignment under high-speed conditions (up to 7000 rpm).
Optimized Internal Clearance: C3 clearance accommodates thermal expansion during high-speed operation, preventing binding and ensuring consistent performance across the operating temperature range (-30° to 110°C).
Premium Material Construction: Chrome steel rings and balls combined with a steel cage deliver exceptional wear resistance and dimensional stability under heavy combined loads.
1213KJC3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Machine Tool Spindles requiring high precision and rigidity
- Material Handling Equipment and conveyor systems
- Agricultural Machinery and heavy-duty implements
- Mining Equipment operating under demanding radial load conditions
- Pump and Compressor Systems requiring reliable bearing performance
