7208 BECBJ
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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7208 BECBJ Bearing Product Overview & Core Advantages
The 7208 BECBJ 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 and manufactured to P6 (ABEC-3) tolerance class, this bearing excels at handling significant axial loads in one direction while simultaneously supporting radial loads. Its precision construction and optimized internal geometry deliver exceptional rotational accuracy and operational reliability, making it an ideal choice for demanding industrial machinery and high-speed equipment.
7208 BECBJ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7 | Angular Contact Ball Bearing |
| 208 | Bore Diameter: 40 mm |
| BE | High capacity internal design with optimized contact angle and raceway geometry |
| CB | Enhanced internal clearance for specific application requirements |
| J | Stainless Steel pressed cage design |
7208 BECBJ 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. This design ensures optimal stress distribution across the bearing components.
High-Speed Capability: Featuring a stainless steel pressed cage (J designation), the bearing maintains structural integrity at high rotational speeds up to 11,000 rpm. The cage design minimizes friction and ensures stable ball guidance under demanding operating conditions.
Precision Manufacturing: Manufactured to P6 (ABEC-3) tolerance class with tight dimensional control on bore diameter, outside diameter, and width, ensuring precise fitment and minimal runout in high-accuracy applications.
Material Excellence: Constructed from chrome steel for both rings and balls, providing excellent hardness, wear resistance, and fatigue life. The material combination ensures reliable performance across the specified temperature range of -30° to 110°C.
7208 BECBJ Bearing Typical Application Areas
The 7208 BECBJ angular contact ball bearing finds extensive use in precision applications requiring high-speed operation and accurate positioning:
- Machine Tool Spindles: Provides high rigidity and precision for milling, grinding, and turning operations
- High-Speed Motors: Supports combined radial and axial loads in electric motor applications
- Industrial Pumps: Handles axial thrust loads while supporting radial loads in centrifugal and turbine pumps
- Precision Gearboxes: Ensures accurate shaft positioning and load distribution in transmission systems
- Robotics and Automation: Delivers reliable performance in robotic joints and precision positioning systems
