7309 BEGAM
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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Product Overview and Core Advantages
The 7309 BEGAM is a single row angular contact ball bearing designed for applications requiring high precision and reliable performance under combined loads. This precision bearing excels at simultaneously handling substantial radial loads and unidirectional axial loads, thanks to its optimized 40° contact angle. Manufactured to P6 (ABEC-3) tolerance class, it delivers exceptional running accuracy and dimensional stability. The bearing features a brass cage for superior guidance and comes pre-lubricated for immediate operation, making it an ideal solution for high-speed machinery and precision equipment where high rigidity and consistent performance are critical.
7309 BEGAM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Significance |
|---|---|---|
| 7309 | Basic designation: 45mm bore, 100mm OD, 25mm width | Standard bearing dimensions for common shaft applications |
| BE | 40° contact angle design | Optimized for high axial load capacity and high rigidity |
| G | P6 tolerance class | Enhanced running accuracy equivalent to ABEC-3 |
| A | Optimized internal design | Improved load distribution and stress management |
| M | Brass cage material | Superior high-speed performance and cage stability |
Structural Features and Performance Benefits
High Rigidity and Load Capacity: The 40° contact angle and optimized raceway geometry enable the 7309 BEGAM to effectively handle combined loads, including significant radial loads and unidirectional axial loads. The precisely calculated shoulder diameters (66.5mm inner ring, 79.9mm outer ring) provide optimal support for high rigidity applications.
High-Speed Performance: The brass cage ensures excellent guidance and stability at elevated speeds, contributing to the bearing's limiting speed of 9,000 rpm. The optimized internal clearance and precision manufacturing minimize friction and heat generation.
Precision Engineering: Manufactured to P6 tolerance class with tight dimensional controls (bore tolerance: -0.01mm to 0, OD tolerance: -0.013mm to 0), this bearing delivers exceptional running accuracy and minimal vibration for precision applications.
Material Quality: Constructed from chrome steel rings and balls with brass cage, the bearing offers excellent durability and wear resistance across the operating temperature range of -30°C to 110°C.
7309 BEGAM Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC equipment
- Industrial Pumps and Compressors: Centrifugal pumps, vacuum pumps, and air compressors
- Precision Gearboxes: High-speed transmission systems and reduction units
- Electric Motors: High-performance industrial motors and servo drives
- Material Handling Equipment: High-speed conveyor systems and automated handling machines
- Medical Equipment: Precision medical devices and diagnostic equipment requiring high reliability
