1220KC4
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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1220KC4 Bearing Product Overview & Core Advantages
The 1220KC4 is a double row angular contact ball bearing designed for applications requiring high precision and robust performance. This metric bearing features a tapered bore (1:12) for secure shaft mounting and is optimized to handle significant radial loads. Its double row construction provides enhanced rigidity and load-carrying capacity compared to single row designs, making it suitable for demanding industrial environments. The bearing comes pre-lubricated and features a generous C4 radial internal clearance, accommodating thermal expansion in high-speed operations. Manufactured from high-grade chrome steel with a stainless steel cage, it ensures durability and reliable performance across a temperature range of -30°C to 110°C.
1220KC4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1220 | Basic bearing designation indicating bore diameter (100 mm) and series. |
| K | Denotes a tapered bore with a 1:12 taper ratio. |
| C4 | Indicates a greater than normal radial internal clearance, suitable for applications with thermal expansion or where interference fits are used. |
1220KC4 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing design provides superior stiffness and can support substantial radial dynamic loads (rated at 15502 lbf), making it ideal for applications with heavy and combined loads.
- Tapered Bore Design: The 1:12 tapered bore ensures a precise and secure interference fit on the shaft, enhancing operational stability and facilitating easier mounting and dismounting with adapter sleeves.
- Optimized for Demanding Conditions: The C4 radial clearance accommodates thermal expansion, preventing preload and seizure in high-speed operations (limiting speed of 4800 rpm). The stainless steel cage contributes to high-speed capability and corrosion resistance.
- Pre-lubricated & Ready-to-Use: Factory-applied lubrication ensures immediate operation and reduces initial maintenance requirements.
- Precision Manufacturing: Tight dimensional tolerances on the bore, outside diameter, and width guarantee consistent performance and ease of integration into precision assemblies.
1220KC4 Bearing Typical Application Areas
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (Conveyors, Pulleys)
- Agricultural Machinery
- Vibrating Screens and Heavy-Duty Machinery
- Pump and Compressor Systems
