7311 BEGBP
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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7311 BEGBP Bearing Product Overview & Core Advantages
The 7311 BEGBP 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, making it ideal for high-speed spindles and precision machinery. The optimized internal geometry and nylon cage contribute to its high-speed capability, low operating temperature, and quiet operation, delivering reliable performance in demanding industrial environments.
7311 BEGBP Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 7311 | Basic bearing designation: 55mm bore, 120mm OD, 29mm width | Standard metric dimensions for common shaft sizes |
| BE | Increased contact angle (40°) and optimized internal design | Enhanced axial load capacity and high-speed performance |
| GP | Pre-greased with high-performance lubricant | Ready for immediate installation and long service life |
7311 BEGBP 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 and extended service life.
High-Speed Capability: The lightweight nylon cage minimizes centrifugal forces, reduces friction, and enables operation at limiting speeds up to 7,000 rpm. The cage design ensures proper ball guidance and stable operation at high rotational speeds.
Superior Load Ratings: With a dynamic load rating of 19,125 lbf and static load rating of 13,500 lbf, this bearing delivers reliable performance under demanding combined radial and axial loads.
Precision Manufacturing: Manufactured to P6 (ABEC-3) tolerance class with tight dimensional control, ensuring precise running accuracy, minimal vibration, and consistent performance in precision applications.
7311 BEGBP Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling heads
- High-Speed Motors: Electric motor applications requiring precise shaft guidance and high rotational speeds
- Pumps and Compressors: Centrifugal pumps, vacuum pumps, and compressor systems
- Precision Gearboxes: Industrial gearboxes and transmission systems requiring accurate bearing positioning
- Material Handling Equipment: High-performance conveyor systems and automated handling machinery
