7211 BECBY
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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Product Overview and Core Advantages
The 7211 BECBY is a single row angular contact ball bearing engineered for high-precision applications requiring exceptional performance under combined loads. This precision bearing features a 40° contact angle, enabling it to efficiently support substantial axial loads in one direction while simultaneously handling radial loads. Manufactured to P6 (ABEC-3) tolerance class, it delivers the dimensional accuracy and running precision essential for demanding machinery. Its optimized internal geometry and brass cage contribute to smooth operation at high speeds, making it an ideal choice for applications where high rigidity and reliable performance are critical.
7211 BECBY Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7211 | Basic bearing designation indicating a metric single row angular contact ball bearing with a 55 mm bore, 100 mm OD, and 21 mm width. |
| BE | Designates a 40° contact angle, optimized for high axial load capacity. |
| CB | Indicates specific internal design and clearance for enhanced performance. |
| Y | Signifies a brass cage (machined window type), providing high strength and excellent guidance for high-speed operation. |
Structural Features and Performance Benefits
High Rigidity and Load Capacity: The single row design with a steep 40° contact angle provides superior rigidity and enables the bearing to handle significant combined loads, particularly one-direction axial loads. The optimized raceway and ball geometry ensure maximum load distribution.
High-Speed Performance: The robust brass cage (Y) ensures stable ball guidance and low friction, contributing to a high limiting speed of 8,000 rpm. This makes the bearing suitable for demanding high-speed applications.
Precision and Reliability: Manufactured to P6 tolerance class, this bearing guarantees precise running accuracy and minimal vibration. The open seal type allows for optimal lubrication management, which is crucial for maintaining performance in high-speed and high-temperature environments.
Material Excellence: Constructed from chrome steel for both rings and balls, the bearing offers high durability, wear resistance, and a long operational lifespan under demanding conditions.
7211 BECBY Bearing Typical Application Areas
The 7211 BECBY is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Agricultural Machinery
- Industrial Motors
