1209J
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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1209J Bearing Product Overview & Core Advantages
The 1209J is a double row angular contact ball bearing designed for applications requiring high precision and reliability. This metric bearing features an open construction, enabling it to accommodate combined loads—significant radial forces along with moderate axial loads in both directions. Its compact design, with a 19 mm width, makes it ideal for space-constrained assemblies. Manufactured from chrome steel and pre-lubricated, it delivers robust performance and durability in demanding environments.
1209J Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1209 | Basic designation indicating a double row angular contact ball bearing with a 45 mm bore diameter and 85 mm outside diameter. |
| J | Suffix denoting a specific internal design and optimized internal geometry for enhanced performance. |
| Open (Seal Type) | No contact seals, allowing for higher speeds and easier re-lubrication, suitable for clean environments or where external sealing is provided. |
| CN (Radial Internal Clearance) | Standard normal radial internal clearance group, providing a balance between thermal expansion and operational precision. |
1209J Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row design provides superior rigidity and enables the bearing to support substantial radial dynamic loads (5152 lbf) and bidirectional axial loads simultaneously, making it suitable for applications with complex loading conditions.
Optimized for High-Speed Operation: With a limiting speed of 11,000 rpm and a steel cage, the bearing maintains stability and performance at high rotational speeds.
Precision & Durability: Manufactured from high-grade chrome steel for both rings and balls, the bearing ensures long service life and consistent performance. The cylindrical bore with precise tolerances facilitates accurate shaft fitting.
Pre-Lubricated & Ready-to-Use: Factory-applied lubrication allows for immediate installation and initial operation, reducing setup time and ensuring proper initial performance.
1209J Bearing Typical Application Areas
The 1209J double row angular contact ball bearing is widely used in various industrial sectors due to its high rigidity and ability to handle combined loads. Key applications include:
- Electric Motors and Gearboxes
- Industrial Pumps and Compressors
- Material Handling Equipment
- Agricultural Machinery
- General Industrial Machinery requiring robust and reliable bearing solutions
