1220KJ
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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1220KJ Bearing Product Overview & Core Advantages
The 1220KJ metric double row angular contact ball bearing represents a high-precision bearing solution engineered for demanding applications requiring superior rigidity and combined load capacity. Featuring a tapered bore design (1:12), this bearing is optimized for precise interference fits on adapter sleeves or withdrawal sleeves, ensuring maximum running accuracy and system stability. Its double row construction enables it to accommodate significant radial loads and bidirectional axial loads simultaneously, making it an ideal choice for compact, high-performance machinery where space and reliability are critical.
1220KJ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1220 | Standard bearing series designation, indicating a double row angular contact ball bearing with a 100mm bore and 180mm outside diameter. |
| K | Denotes a tapered bore with a 1:12 ratio, designed for secure mounting on adapter sleeves. |
| J | Indicates the steel cage material, providing high strength and durability for demanding operating conditions. |
1220KJ Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The double row ball bearing design provides superior stiffness and stability, effectively resisting moment loads and minimizing deflection in precision shaft systems. This results in improved positional accuracy and reduced vibration.
Superior Load Capacity: Engineered to handle combined radial and axial loads from both directions, this bearing eliminates the need for complex bearing arrangements, simplifying design and reducing overall system footprint.
Optimized Internal Geometry: Precision-ground raceways and balls manufactured from chrome steel ensure smooth operation, low noise, and extended service life. The standard CN radial internal clearance is suitable for most industrial applications.
Convenient Installation & Maintenance: The tapered bore facilitates precise axial positioning and secure clamping, while the open seal type allows for custom lubrication regimes. The bearing is supplied pre-lubricated for immediate installation and initial operation.
1220KJ Bearing Typical Application Areas
- Machine Tool Spindles and high-precision rotating units
- Gearboxes and power transmission systems
- Industrial Pumps and compressors
- Material Handling Equipment and conveyor systems
- Paper & Printing Machinery
