1220-K C/3
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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1220-K C/3 Bearing Product Overview & Core Advantages
The 1220-K C/3 is a metric double row angular contact ball bearing engineered for applications requiring exceptional rigidity and the capacity to handle combined loads. Its double row design provides robust support, making it ideal for high-precision machinery. Featuring a tapered bore (1:12 ratio) for secure mounting and a standard CN radial internal clearance, this bearing is pre-lubricated for immediate use and offers reliable performance within a wide operating temperature range.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1220 | Standard bearing series designation. |
| K | Indicates a tapered bore with a 1:12 ratio, facilitating precise interference fits on adapter sleeves or withdrawal sleeves. |
| C/3 | Specifies the radial internal clearance group. C3 denotes a clearance greater than normal (CN), suitable for applications with expected thermal expansion or heavy interference fits. |
1220-K C/3 Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row ball bearing construction provides significantly higher rigidity compared to single row designs, enabling stable operation under substantial radial loads and moderate axial loads in both directions.
Precision Engineering: Manufactured from chrome steel for both rings and balls, and featuring a durable stainless steel cage, the bearing ensures long-term dimensional stability and reliable performance. The tight dimensional tolerances on the bore diameter, outside diameter, and width guarantee precise fit and alignment.
Optimized for Demanding Applications: The C3 radial internal clearance accommodates thermal expansion and interference fits, preventing premature failure. With a limiting speed of 4,800 rpm and pre-lubrication, it is ready for high-performance use.
1220-K C/3 Bearing Typical Application Areas
This bearing is suited for a wide range of industrial machinery where high rigidity and reliability are paramount. Common applications include:
- Industrial Gearboxes
- Vibrating Screens and Conveyors
- Agricultural Machinery
- Material Handling Equipment
- Pump and Compressor Systems
