1220KJC3
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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1220KJC3 Bearing Product Overview & Core Advantages
The 1220KJC3 is a metric double row angular contact ball bearing engineered for 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 demanding conditions. Its C3 radial internal clearance accommodates thermal expansion, making it ideal for industrial environments with varying operational temperatures. Pre-lubricated for immediate service, this bearing offers reliable performance in high-speed applications up to 4,800 rpm while maintaining dimensional accuracy with tight tolerance standards.
Model Code Detailed Breakdown
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 1220 | Standard bore diameter 100mm | Standard metric bearing size |
| K | 1:12 Tapered bore | Secure interference fit on tapered shafts |
| JC3 | C3 radial internal clearance | Accommodates thermal expansion in high-temperature applications |
1220KJC3 Bearing Structural Features & Performance Benefits
Double Row Design: The dual angular contact configuration provides enhanced radial load capacity and moment stiffness, making it suitable for applications requiring high rigidity and precision alignment.
Steel Cage Construction: The pressed steel cage ensures reliable high-speed performance and maintains ball positioning under extreme operating conditions, contributing to the bearing's 4,800 rpm limiting speed.
Tapered Bore Mounting: The 1:12 taper enables precise axial positioning and secure interference fit, preventing creep and ensuring stable operation in heavy-duty applications.
C3 Clearance Advantage: The increased internal clearance accommodates thermal expansion in high-temperature environments (-30° to 110°C), reducing the risk of premature failure due to thermal stresses.
1220KJC3 Bearing Typical Application Areas
- Industrial Gearboxes: High radial load capacity and tapered bore provide reliable power transmission
- Machine Tool Spindles: Precision performance and high rigidity for accurate machining operations
- Material Handling Equipment: Robust construction for conveyor systems and lifting mechanisms
- Agricultural Machinery: C3 clearance accommodates thermal variations in demanding field conditions
- Pump and Compressor Systems: High-speed capability and reliable performance in fluid handling applications
