1209C3
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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1209C3 Bearing Product Overview & Core Advantages
The 1209C3 is a double row angular contact ball bearing designed for applications requiring high radial load capacity and operational stability. As a metric precision bearing, it features an open design and is pre-lubricated for immediate use. Its key advantages include the ability to handle significant radial dynamic loads (5152 lbf) and its suitability for moderate to high-speed operations with a limiting speed of 11,000 rpm. The specified C3 radial internal clearance makes it ideal for applications where thermal expansion is a factor, ensuring reliable performance and high rigidity in demanding industrial environments.
1209C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 1209 | Basic bearing designation indicating a double row angular contact ball bearing with a 45 mm bore diameter and 85 mm outside diameter. |
| C3 | Specifies a greater than normal radial internal clearance. This is critical for applications with expected thermal expansion or where fit-up conditions require extra internal space. |
1209C3 Bearing Structural Features & Performance Benefits
- Double Row Design & High Rigidity: The double row ball bearing construction provides superior radial stiffness and load distribution compared to single row designs, enabling stable operation under heavy radial dynamic loads.
- Optimized Load Capacity: Engineered to support substantial radial loads, with a dynamic load rating of 5152 lbf, making it suitable for applications with significant force requirements.
- High-Speed Capability: The combination of a nylon cage and precision-ground chrome steel components allows for a high limiting speed of 11,000 rpm, reducing friction and heat generation.
- Pre-Lubricated & Ready-to-Use: Comes pre-lubricated, simplifying installation and providing immediate protection. The open seal type allows for potential re-lubrication in specific service environments.
- Precision Dimensions: Manufactured with tight bore diameter and outside diameter tolerances, ensuring precise fits and reliable performance in high-precision assemblies.
1209C3 Bearing Typical Application Areas
The 1209C3 double row angular contact ball bearing is engineered for robust performance in various industrial sectors. Common applications include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring reliable support for combination loads
