7220 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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7220 BECBY Bearing Product Overview & Core Advantages
The 7220 BECBY 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, primarily handling significant axial loads in one direction along with radial loads. Its 40° contact angle and P6 (ABEC-3) tolerance class ensure high running accuracy and system rigidity, making it an ideal choice for demanding, high-speed machinery.
7220 BECBY Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| BE | High Capacity & Optimized Internal Design | Increased load rating and improved performance under demanding conditions. |
| CB | Specific Internal Clearance & Contact Angle | Ensures optimal preload and running characteristics for the specified 40° contact angle. |
| Y | Special Cage Design / Configuration | Indicates a specific cage, in this case a brass cage, suitable for high-speed operation. |
7220 BECBY Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The BE designation signifies an optimized internal design with a larger ball complement and raceway geometry. This directly enhances the dynamic and static load ratings (32,175 lbf / 30,150 lbf), providing a robust solution for heavy-duty applications.
High-Speed Capability: The combination of the 40° contact angle and the robust brass cage provides excellent guidance and stability, enabling a high limiting speed of 4,500 rpm. This makes the bearing suitable for demanding high-speed spindles and rotors.
Precision & Rigidity: Manufactured to a P6 (ABEC-3) tolerance class, this bearing ensures minimal runout and precise shaft positioning. The defined contact angle and high-quality chrome steel construction contribute to high system rigidity and long-term dimensional stability.
Standard Lubrication & Open Design: As an open bearing, it is supplied lubricated and ready for integration into a system with centralized lubrication, allowing for optimal performance within its specified temperature range of -30°C to 110°C.
7220 BECBY Bearing Typical Application Areas
The 7220 BECBY is ideally suited for precision machinery and high-speed equipment, including:
- Machine Tool Spindles: For milling, grinding, and turning centers requiring high rigidity and speed.
- High-Speed Pumps & Compressors: Where reliable performance under combined radial and axial loads is critical.
- Precision Gearboxes: Providing accurate shaft support and handling thrust loads.
- Industrial Motors & Turbines: For high-performance applications demanding precision and durability.
