7309 BEP
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 BEP Bearing Product Overview & Core Advantages
The 7309 BEP is a single row angular contact ball bearing designed for high-precision applications requiring superior performance under combined loads. Engineered with a 40° contact angle, this bearing excels at simultaneously handling significant radial loads and substantial axial loads in one direction. Its P6 (ABEC-3) tolerance class ensures exceptional running accuracy, while the optimized internal geometry and nylon cage contribute to smooth operation at high speeds. This bearing is pre-lubricated for immediate installation and reliable performance across a wide temperature range from -30°C to 110°C.
7309 BEP Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Performance Benefit |
|---|---|---|
| BE | Increased internal clearance and optimized contact angle | Enhanced axial load capacity and thermal stability |
| P | P6 tolerance class (ABEC-3) | High precision running accuracy for demanding applications |
7309 BEP Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The 40° contact angle and precisely calculated raceway curvature provide superior axial load capacity while maintaining excellent radial load performance. The calculated distance from side face to load point (43mm) ensures optimal moment load distribution.
High-Speed Capability: The lightweight nylon cage reduces centrifugal forces, enabling operation at limiting speeds up to 8,000 rpm. The open design facilitates efficient lubrication distribution and heat dissipation.
Precision Engineering: Manufactured to P6 tolerance class with tight dimensional controls on bore diameter (45mm ±0/-0.01mm), outside diameter (100mm ±0/-0.013mm), and width (25mm ±0/-0.05mm) for consistent performance in precision assemblies.
Material Excellence: Constructed from high-grade chrome steel for both rings and balls, providing excellent hardness, wear resistance, and fatigue life under demanding operating conditions.
7309 BEP Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers requiring accurate rotational performance
- Industrial Pumps: Centrifugal and process pumps handling combined radial and axial loads
- Precision Gearboxes: Power transmission systems demanding high-speed capability and accuracy
- Electric Motors: High-performance motors requiring reliable bearing support
- Medical Equipment: Diagnostic and laboratory instruments needing smooth, precise rotation
- Robotics and Automation: Joint and drive mechanisms requiring high rigidity and accuracy
