1209 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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1209 C/3 Bearing Product Overview & Core Advantages
The 1209 C/3 is a metric double row angular contact ball bearing engineered for applications requiring high radial load capacity and precision operation. Its double row design provides superior rigidity and stability compared to single row bearings, making it ideal for supporting substantial combined loads. Manufactured from high-grade chrome steel with a lightweight nylon cage, this bearing is optimized for high-speed performance and reliable operation within a wide temperature range. The open design, lubricated for life, ensures low friction and is suitable for precision arrangements in various industrial machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 1209 | Standard bearing designation indicating the bearing size with a 45 mm bore diameter and 85 mm outside diameter. |
| C | Specifies a design with increased internal radial clearance compared to the standard CN group. This is suitable for applications with specific thermal expansion requirements. |
| 3 | Indicates the bearing is supplied with a C3 radial internal clearance, which is greater than the standard CN clearance. This is optimal for applications with expected thermal gradients or where interference fits are used. |
1209 C/3 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row angular contact construction provides robust support, enabling the bearing to handle significant radial loads and moderate axial loads in both directions. This results in enhanced machine stability and accuracy.
- Optimized for High Speeds: The lightweight nylon cage reduces centrifugal forces, minimizes friction, and contributes to a high limiting speed of 11,000 rpm, making it a capable high-speed bearing.
- Precision & Longevity: Manufactured from high-carbon chrome steel for both rings and balls, the bearing ensures high durability and resistance to wear. The precision bore diameter and outside diameter tolerances guarantee consistent performance and easy integration into precision assemblies.
- Pre-lubricated & Ready-to-Use: The bearing is factory-lubricated, ensuring immediate operation and reducing maintenance requirements. The specified radial internal clearance (C3) accommodates thermal expansion in demanding applications.
1209 C/3 Bearing Typical Application Areas
The 1209 C/3 is widely used in various industrial sectors due to its robust construction and high-performance characteristics. Key application areas include:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Pumps and Compressors
