1220-KM 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-KM C/3 Bearing Product Overview & Core Advantages
The 1220-KM C/3 is a metric double row angular contact ball bearing engineered for demanding applications requiring high radial load capacity and precision operation. Featuring a tapered bore (1:12) for precise shaft fitting and secure mounting, this bearing delivers exceptional rigidity and stability. Its double row ball construction enables it to handle significant combined loads while maintaining high running accuracy. Pre-lubricated and supplied with a standard CN radial internal clearance, it is ready for installation and optimized for a wide operating temperature range, making it a robust and reliable choice for industrial machinery.
1220-KM C/3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1220 | Standard bearing designation indicating bore diameter and series. |
| KM | Designates a tapered bore (1:12) for precise mounting on a tapered shaft adapter. |
| C/3 | Specifies the CN radial internal clearance group, which is the standard/normal clearance for general applications. |
1220-KM C/3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact ball design provides superior rigidity and enables the bearing to support high radial dynamic loads (15,502 lbf) and static loads (6,750 lbf).
- Precision Tapered Bore: The KM suffix indicates a tapered bore with a 1:12 ratio, allowing for precise axial positioning and a tight, secure fit on the shaft, minimizing slippage and vibration.
- Optimized Material & Construction: Manufactured from chrome steel rings and balls with a durable brass cage, this construction ensures high strength, wear resistance, and stable performance at the specified limiting speed of 4,800 rpm.
- Ready-to-Install Convenience: The bearing comes pre-lubricated and with a standard CN clearance, reducing installation time and ensuring immediate operational readiness within a temperature range of -30°C to 110°C.
1220-KM C/3 Bearing Typical Application Areas
- Industrial Gearboxes and Transmissions
- Vibrating Screens and Conveyors
- Agricultural Machinery
- Material Handling Equipment
- Pump and Compressor Systems
