7311 BECBP
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 BECBP Bearing Product Overview & Core Advantages
The 7311 BECBP is a single row angular contact ball bearing engineered for high-performance applications requiring exceptional precision and reliability. This precision bearing is designed to accommodate combined loads, specifically high axial loads in one direction alongside significant radial loads. Its optimized 40° contact angle and P6 (ABEC-3) tolerance class ensure smooth operation, high running accuracy, and superior rotational stability. The bearing is pre-lubricated for immediate use and operates effectively within a wide temperature range, making it an ideal solution for demanding industrial environments.
7311 BECBP Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 7311 | Standard bearing series designation indicating a metric, single row bearing with a 55 mm bore, 120 mm outside diameter, and 29 mm width. |
| BE | Signifies an increased contact angle of 40°, providing enhanced axial load carrying capacity. |
| CB | Indicates a Polyamide (Nylon) cage, which contributes to lower friction, quieter operation, and is suitable for high-speed applications. |
| P | Denotes the P6 tolerance class (equivalent to ABEC-3), ensuring high precision and dimensional stability for accurate positioning. |
7311 BECBP Bearing Structural Features & Performance Benefits
Optimized Contact Angle and High Rigidity: The 40° contact angle is a key structural feature that enables the 7311 BECBP to handle substantial one-direction axial loads and combined loads effectively. This design provides high rigidity, minimizing deflection under load for precise shaft positioning.
Superior Cage for High-Speed Performance: The lightweight and robust Nylon cage (CB) ensures excellent guidance of the balls, reducing centrifugal forces and friction. This allows for a high limiting speed of 7,000 rpm, making it a true high-speed bearing.
Precision Manufacturing for Reliability: Manufactured to P6 tolerance from high-grade Chrome Steel, this bearing guarantees consistent performance, low noise, and long service life. The open design allows for optimal lubrication flow and heat dissipation.
Robust Load Capacity: With a dynamic load rating of 19,125 lbf and a static load rating of 13,500 lbf, this bearing is built to withstand demanding operational conditions.
7311 BECBP Bearing Typical Application Areas
The 7311 BECBP angular contact ball bearing is ideally suited for applications requiring high precision, speed, and axial load capacity. Key industries and machinery include:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Agricultural Machinery
- Material Handling Equipment
