1211KJC3
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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1211KJC3 Bearing Product Overview & Core Advantages
The 1211KJC3 is a double row angular contact ball bearing designed for demanding industrial applications requiring high load capacity and precision performance. This metric bearing features a tapered bore (1:12) for secure shaft mounting and is pre-lubricated for immediate operation. Its double row construction provides superior rigidity and enables it to accommodate significant combined loads (radial and axial) simultaneously. The optimized internal geometry and C3 radial internal clearance make it suitable for applications with thermal expansion considerations, ensuring reliable performance across its operating temperature range.
1211KJC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1211 | Standard bore diameter code (55 mm) and dimension series |
| K | Tapered bore with a 1:12 ratio |
| J | Steel cage design |
| C3 | Greater than normal radial internal clearance |
1211KJC3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball bearing design provides a robust support structure, significantly increasing stiffness and enabling high radial dynamic load ratings (6210 lbf). This construction is engineered to handle combined loads effectively.
Precision Tapered Bore: The K-suffix denotes a tapered bore, which allows for precise axial positioning and a secure, interference fit on the shaft, minimizing slippage and ensuring accurate rotation.
Optimized Internal Clearance: The C3 clearance is larger than standard, making this bearing ideal for applications where thermal expansion of the shaft or housing is expected, preventing pre-load and ensuring smooth operation.
Robust Material Construction: Manufactured from chrome steel for both rings and balls, this bearing offers excellent durability and wear resistance. The steel cage ensures high strength and reliability under demanding conditions.
1211KJC3 Bearing Typical Application Areas
- Industrial Gearboxes and power transmission systems
- Material Handling Equipment such as conveyor pulleys
- Agricultural Machinery including tractor transmissions
- Electric Motors and industrial fans
- General machinery requiring high rigidity and combined load capacity
