1209KJC3
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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1209KJC3 Bearing Product Overview & Core Advantages
The 1209KJC3 is a double row angular contact ball bearing designed for applications requiring high rigidity and combined load capacity. Featuring a tapered bore (1:12) and C3 radial internal clearance, this precision bearing delivers exceptional performance in demanding industrial environments. Its optimized design enables simultaneous handling of radial loads and bidirectional axial loads, making it ideal for compact arrangements where space constraints and high rigidity are critical factors.
1209KJC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 1209 | Standard bore diameter 45mm, outside diameter 85mm | Standard bearing dimensions for easy interchangeability |
| K | Tapered bore 1:12 | Facilitates precise mounting and dismounting on tapered shafts |
| C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in high-temperature applications |
Structural Features & Performance Advantages
High Rigidity & Load Capacity: The double row construction provides superior stiffness and enables the bearing to handle combined loads effectively. With a radial dynamic load rating of 5152 lbf and radial static load rating of 1755 lbf, it offers reliable performance under significant stress conditions.
Precision Engineering: Manufactured from chrome steel for both rings and balls, with a steel cage for dimensional stability. The tapered bore design ensures secure fitting on matching shafts, enhancing overall system accuracy.
Optimized Performance: The C3 clearance allows for thermal expansion during operation, while the lubricated construction ensures smooth running. The bearing operates effectively within a temperature range of -30° to 110°C, making it suitable for various industrial environments.
1209KJC3 Bearing Typical Application Areas
- Industrial gearboxes and transmission systems
- Machine tool spindles requiring high precision and rigidity
- Material handling equipment and conveyor systems
- Agricultural machinery and heavy-duty equipment
- Pump and compressor applications demanding reliable performance
