1208 KC3
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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1208 KC3 Bearing Product Overview & Core Advantages
The 1208 KC3 is a metric double row angular contact ball bearing engineered for demanding industrial applications requiring high precision and reliability. Featuring a tapered bore (1:12) design, this bearing excels at handling combined radial and axial loads simultaneously. Its compact double-row construction provides exceptional rigidity and stability, making it ideal for applications where shaft deflection must be minimized. Pre-lubricated and featuring C3 radial internal clearance, the 1208 KC3 delivers optimized performance across a wide temperature range from -30°C to 110°C.
1208 KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 1208 | Basic bearing designation | 40mm bore, 80mm OD, 18mm width |
| K | Tapered bore (1:12) | Enables precise mounting and adjustment on tapered shafts |
| C3 | Radial internal clearance greater than normal | Accommodates thermal expansion in high-speed applications |
1208 KC3 Bearing Structural Features & Performance Benefits
Double Row Design: The dual raceway configuration provides enhanced rigidity and superior load distribution compared to single row bearings, making it ideal for applications requiring high precision positioning.
Optimized Load Capacity: With a dynamic load rating of 4478 lbf and static load rating of 1564 lbf, this bearing efficiently handles combined radial and axial loads in both directions, eliminating the need for complex bearing arrangements.
High-Speed Capability: The nylon cage material ensures smooth operation at limiting speeds up to 11,000 rpm, while the C3 clearance accommodates thermal expansion during high-speed rotation.
Precision Engineering: Manufactured from chrome steel for both rings and balls, the bearing delivers consistent performance with tight dimensional tolerances for bore, outside diameter, and width.
1208 KC3 Bearing Typical Application Areas
- Machine Tool Spindles: Precision machining applications requiring high rigidity and accuracy
- Industrial Gearboxes: Power transmission systems needing reliable bearing performance
- Material Handling Equipment: Conveyor systems and automated handling machinery
- Agricultural Machinery: Heavy-duty equipment requiring robust bearing solutions
- Electric Motors: High-speed motor applications where thermal management is critical
