7308 BEGBM
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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7308 BEGBM Bearing Product Overview & Core Advantages
The 7308 BEGBM is a single row angular contact ball bearing engineered for high-precision applications requiring superior performance under combined loads. Designed with a 40° contact angle, this bearing excels at handling significant axial loads in one direction while simultaneously supporting radial loads. Its P6 (ABEC-3) tolerance class ensures exceptional running accuracy, making it ideal for high-speed spindles and precision machinery. The open design, combined with brass cage construction, facilitates optimal lubrication flow and stable operation at limiting speeds up to 12,000 rpm.
7308 BEGBM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| BE | Increased internal clearance and contact angle | Enhanced axial load capacity and thermal stability |
| GB | Optimized internal geometry | Improved load distribution and reduced stress concentrations |
| M | Brass cage | Excellent high-speed stability and wear resistance |
7308 BEGBM Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured to P6 tolerance class with precisely ground raceways and chrome steel components for consistent performance in demanding applications.
Superior Load Capacity: The 40° contact angle and optimized internal geometry enable high axial load carrying capacity (Radial dynamic load rating: 11,250 lbf) while maintaining excellent radial load performance.
High-Speed Capability: The brass cage (M suffix) provides exceptional stability at limiting speeds of 12,000 rpm, reducing centrifugal forces and maintaining ball guidance accuracy.
Thermal Performance: The open design allows for efficient lubrication circulation, supporting operation within a temperature range of -30° to 110°C while maintaining dimensional stability.
7308 BEGBM Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC lathes requiring accurate rotational performance
- High-Speed Motors: Electric motors and generators operating at elevated speeds
- Precision Gearboxes: Industrial transmission systems demanding high rigidity and load capacity
- Pump Systems: Centrifugal pumps and compressor applications with combined radial and axial loads
- Robotics & Automation: Joint mechanisms and positioning systems requiring high accuracy and reliability
