7309 BECAP
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 BECAP Bearing Product Overview & Core Advantages
The 7309 BECAP is a single row angular contact ball bearing engineered for high-precision applications requiring superior performance under combined loads. This metric bearing is distinguished by its 40° contact angle, enabling it to support significant radial loads and unidirectional axial loads simultaneously. Manufactured to P6 (ABEC-3) tolerance class, it delivers exceptional running accuracy and rotational stability. Its optimized internal geometry and nylon cage contribute to smooth operation at high speeds (up to 9,000 rpm), making it an ideal component for demanding machinery where high rigidity and reliability are paramount.
7309 BECAP Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance |
|---|---|---|
| BE | Increased Internal Clearance / Optimized Internal Design | Enhances operational stability and accommodates thermal expansion in high-speed applications. |
| C | 40° Contact Angle | Provides a high thrust load capacity, making it suitable for heavy axial loads. |
| AP | Open (Unsealed) Design with Caged Assembly | Allows for custom lubrication regimes and facilitates high-speed operation with minimal friction. |
7309 BECAP Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The single row design with a 40° contact angle and robust construction provides excellent resistance to combined loads. With a dynamic load rating of 13,725 lbf and a static load rating of 9,112 lbf, it ensures reliable performance in strenuous conditions.
- Optimized High-Speed Performance: The lightweight nylon cage minimizes centrifugal forces, reduces friction, and enables a high limiting speed of 9,000 rpm. The open design facilitates efficient lubrication management for thermal control.
- Precision Engineering: Manufactured to P6 tolerance with strict dimensional control on the bore diameter (45 mm), outside diameter (100 mm), and width (25 mm), ensuring predictable performance and easy integration into precision assemblies.
- Superior Material: Constructed from chrome steel for both rings and balls, offering high wear resistance and durability across a wide temperature range of -30°C to 110°C.
7309 BECAP Bearing Typical Application Areas
The 7309 BECAP is ideally suited for high-performance applications across various industries, including:
- Machine Tool Spindles (e.g., CNC milling and grinding spindles)
- High-Speed Industrial Pumps and Compressors
- Precision Gearboxes and Transmission Systems
- Agricultural and Construction Machinery
- Material Handling Equipment
