1220KC3
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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1220KC3 Bearing Product Overview & Core Advantages
The 1220KC3 is a double row angular contact ball bearing designed for demanding applications requiring high load capacity and rigidity. Its metric system and open seal type make it suitable for systems where external sealing is managed separately. This bearing is engineered to accommodate significant radial loads and is characterized by its tapered bore (1:12), which allows for precise interference fits on adapter sleeves or withdrawal sleeves for secure mounting on shafts. Manufactured from high-grade chrome steel for both rings and balls, it offers excellent durability and performance in a wide temperature range from -30°C to 110°C. Its C3 radial internal clearance makes it suitable for applications with expected thermal expansion or where fits result in a reduction of internal clearance.
1220KC3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1220 | Standard bore diameter code, corresponding to a 100 mm bore. |
| K | Indicates a tapered bore with a 1:12 taper ratio. |
| C3 | Specifies a greater than normal radial internal clearance, ideal for applications with thermal expansion or tight fitting conditions. |
1220KC3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball bearing construction provides superior rigidity and a high radial dynamic load rating of 15502 lbf, enabling it to handle heavy loads and reduce deflection in the supported assembly.
- Tapered Bore Design: The 1:12 tapered bore facilitates precise and secure mounting on a shaft using an adapter sleeve, ensuring a tight fit and optimal power transmission.
- Optimized for Performance: The stainless steel cage ensures low wear and reliable performance, contributing to the bearing's limiting speed of 4,800 rpm. The C3 clearance accommodates thermal expansion, preventing preload and potential seizure.
- Material & Compliance: Constructed from chrome steel for high strength and fatigue resistance. The bearing is pre-lubricated and compliant with ROHS and REACH environmental standards.
1220KC3 Bearing Typical Application Areas
- Industrial Gearboxes and Drives
- Vibrating Screens and Conveyors
- Agricultural Machinery
- Material Handling Equipment
- Pump and Compressor Systems
