7309 BEGAPH
Single Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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7309 BEGAPH Bearing Product Overview & Core Advantages
The 7309 BEGAPH is a single row angular contact ball bearing engineered for high-precision applications requiring superior performance under combined loads. This precision bearing features a 40° contact angle and a P6 (ABEC-3) tolerance class, making it ideal for arrangements demanding high running accuracy and rigidity. Its optimized internal geometry and nylon cage contribute to excellent high-speed capabilities, with a limiting speed of 9,000 rpm. Pre-lubricated for immediate use, it offers reliable operation within a temperature range of -30°C to 110°C.
7309 BEGAPH Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| BE | Increased contact angle (40°) for higher axial load capacity |
| GA | Light preload for enhanced rigidity and precise rotational accuracy |
| PH | Glass fiber reinforced nylon cage (PEEK), suitable for high speeds |
7309 BEGAPH Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The 40° contact angle and optimized raceway geometry enable the bearing to efficiently handle significant combined radial and axial loads in one direction. The GA preload ensures minimal deflection under operational stresses, providing exceptional system stiffness.
High-Speed Performance: The lightweight PH nylon cage (PEEK) reduces centrifugal forces, minimizes friction, and ensures stable operation at the high limiting speed of 9,000 rpm. This makes it an excellent choice for high-speed spindle applications.
Precision & Reliability: Manufactured to P6 (ABEC-3) tolerance standards with chrome steel components, this bearing guarantees consistent precision and long service life. The open design allows for customized lubrication schemes to further optimize performance for specific operating conditions.
7309 BEGAPH Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Industrial Robotics and Automation Equipment
- Medical and Dental Equipment
