7309 BEGAP
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 BEGAP Bearing Product Overview & Core Advantages
The 7309 BEGAP is a single row angular contact ball bearing engineered for high-precision applications requiring superior performance under combined loads. Its defining characteristic is the 40° contact angle, which provides exceptional capacity for handling substantial axial loads in one direction while simultaneously supporting radial loads. Manufactured to P6 (ABEC-3) tolerance, this bearing ensures high running accuracy and is pre-lubricated for immediate installation and reliable operation. The combination of a nylon cage, precision-ground chrome steel components, and optimized internal geometry makes it an ideal solution for demanding, high-speed machinery.
7309 BEGAP Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7309 | Standard bearing series designation, indicating a metric single row angular contact bearing with a 45 mm bore, 100 mm OD, and 25 mm width. |
| BE | Signifies a 40° contact angle, offering a high thrust load capacity. |
| GA | Indicates light preload for reduced noise and vibration, enhancing positional accuracy. |
| P | Denotes a P6 tolerance class (equivalent to ABEC-3), ensuring high precision and dimensional stability. |
7309 BEGAP Bearing Structural Features & Performance Benefits
- High Load Capacity & Rigidity: The 40° contact angle and robust single row design are optimized to handle significant combined radial and axial loads. The calculated load points and shoulder diameters provide stable support, resulting in high system rigidity.
- High-Speed Performance: The lightweight nylon cage minimizes centrifugal forces, reduces friction, and allows for a high limiting speed of 9,000 rpm. This makes the bearing suitable for high-speed spindles and other rapid rotation applications.
- Precision Engineering: Manufactured to P6 tolerance with tight dimensional controls on bore, outside diameter, and width, this bearing guarantees consistent, high-accuracy performance essential for precision equipment.
- Optimized Material Selection: The use of high-grade chrome steel for rings and balls ensures high durability and fatigue resistance, contributing to a long service life under demanding conditions.
7309 BEGAP Bearing Typical Application Areas
The 7309 BEGAP is ideally suited for high-performance applications across various industries, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring precision and rigidity.
- Precision Gearboxes: Where accurate shaft positioning and high load capacity are critical.
- Pumps and Compressors: To handle axial thrust loads and ensure smooth, reliable operation.
- Industrial Motors: In high-speed electric motors that demand low vibration and high running accuracy.
