7311 BECCM
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 BECCM Bearing Product Overview & Core Advantages
The 7311 angular contact ball bearing is a precision single-row bearing engineered for applications requiring high rigidity and accurate rotational performance. Its defining feature is a 40° contact angle, enabling it to efficiently support combined loads—significant radial forces alongside substantial unidirectional axial loads. Manufactured to P6 (ABEC-3) tolerance, it guarantees exceptional running accuracy. The open design, lubricated for immediate operation, is optimized for high-speed applications up to 9,000 rpm, making it a superior choice for demanding, high-precision machinery.
7311 BECCM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7311 | Basic bearing designation. "7" signifies an angular contact ball bearing. "311" indicates a metric bore diameter of 55 mm. |
| Open | The bearing has no seals or shields, allowing for higher speed capability and easier relubrication in suitable environments. |
| P6 | Dimensional and running accuracy tolerance class, equivalent to ABEC-3, ensuring high precision. |
7311 BECCM Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The single-row design with a steep 40° contact angle and robust chrome steel construction provides high rigidity, effectively handling combined radial and axial loads. The high dynamic load rating of 19,125 lbf ensures long service life under demanding conditions.
- Optimized for High Speeds: The brass cage provides excellent guidance and stability at the limiting speed of 9,000 rpm. The open design minimizes friction and heat generation, which is critical for high-speed performance.
- Precision Engineering: Manufactured to P6 tolerance with tight dimensional controls on the bore diameter and outside diameter, this bearing guarantees smooth, vibration-free operation essential for precision applications.
- Superior Material: Components made from chrome steel offer high hardness, wear resistance, and durability, contributing to the bearing's overall reliability and performance.
7311 BECCM Bearing Typical Application Areas
This angular contact ball bearing is ideally suited for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Agricultural Machinery
- Material Handling Equipment
