7209 BEGAPH
Single Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
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Performance
Materials
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7209 BEGAPH Bearing Product Overview & Core Advantages
The 7209 BEGAPH is a single row angular contact ball bearing engineered for applications requiring high precision and reliable performance under combined loads. This metric bearing features a 40° contact angle, enabling it to efficiently support significant axial loads in one direction alongside radial loads. Its P6 (ABEC-3) tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery. The open design, combined with a nylon cage, contributes to its excellent high-speed capability and smooth operation.
7209 BEGAPH Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7209 | Basic bearing designation indicating a medium series angular contact ball bearing with a 45 mm bore diameter. |
| BE | Designates a 40° contact angle and optimized internal geometry for high axial load capacity. |
| GA | Indicates a light preload for enhanced rigidity and reduced deflection in operation. |
| PH | Specifies the nylon cage (polyamide) design, contributing to lower friction, quieter operation, and suitability for high speeds. |
7209 BEGAPH Bearing Structural Features & Performance Benefits
The 7209 BEGAPH delivers superior performance through its precision engineering:
- High Rigidity & Load Capacity: The 40° contact angle and GA preload provide exceptional stiffness, enabling the bearing to handle substantial combined radial and axial loads with minimal deformation.
- Optimized High-Speed Performance: The lightweight nylon cage (PH) reduces centrifugal forces and ensures stable operation at the high limiting speed of 10,000 rpm. The open design facilitates efficient lubrication and heat dissipation.
- Precision & Long Service Life: Manufactured to P6 tolerance from high-grade chrome steel, this bearing guarantees precise shaft positioning and consistent performance, extending the operational life of the entire assembly.
7209 BEGAPH Bearing Typical Application Areas
The 7209 BEGAPH angular contact ball bearing is widely used in demanding applications across various industries, including:
- Machine Tool Spindles: For high-precision machining centers and lathes requiring high rigidity and speed.
- High-Speed Motors & Pumps: Where reliable performance under combined loads and elevated speeds is critical.
- Precision Gearboxes: Providing accurate shaft support and handling thrust loads in power transmission systems.
- Industrial Robotics: In joint and arm assemblies demanding high positional accuracy and dynamic response.
