7311 BECBM
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 BECBM Bearing Product Overview & Core Advantages
The 7311 BECBM is a single row angular contact ball bearing designed for high-performance applications requiring exceptional precision and reliability. Engineered to accommodate combined loads—simultaneously handling significant radial loads and unidirectional axial loads—this bearing is ideal for demanding operational conditions. Its 40° contact angle provides optimized axial load capacity and rigidity. Manufactured to P6 (ABEC-3) tolerance class, it ensures high running accuracy, making it suitable for high-speed applications with a limiting speed of 9,000 rpm. The open design, pre-lubricated for immediate use, offers versatility across a broad temperature range (-30° to 110 °C).
7311 BECBM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| BE | High capacity / optimized internal design | Enhanced load rating and performance |
| CBM | Brass cage, machined | Superior strength and guidance at high speeds, excellent dimensional stability |
7311 BECBM Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row design with a 40° contact angle provides high axial rigidity and excellent capability to handle combined radial and axial loads. With a dynamic load rating of 19,125 lbf and static load rating of 13,500 lbf, it ensures reliable operation under significant stress.
- Optimized High-Speed Performance: The machined brass cage (CBM) ensures low friction, superior guidance, and dimensional stability, contributing directly to the high limiting speed of 9,000 rpm. This makes the bearing ideal for high-speed spindle applications.
- Precision Engineering: Manufactured to P6 tolerance class (ABEC-3), the bearing guarantees high running accuracy and minimal vibration, which is critical for precision machinery.
- Material & Construction: Constructed from chrome steel for rings and balls, the bearing offers high durability and wear resistance. The open, pre-lubricated design allows for easy re-lubrication and maintenance in suitable environments.
7311 BECBM Bearing Typical Application Areas
The 7311 BECBM angular contact ball bearing is widely used in industries and equipment requiring high precision, speed, and reliability, including:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Industrial Motors
- Material Handling Systems
