7220 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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7220 BECCM Bearing Product Overview & Core Advantages
The 7220 is a metric single row angular contact ball bearing engineered for applications requiring high precision and reliable performance under combined loads. This bearing excels at simultaneously handling significant radial loads and unidirectional axial loads due to its 40° contact angle. Manufactured to a P6 (ABEC-3) tolerance class, it delivers exceptional running accuracy and rotational stability, making it ideal for high-speed spindles and other precision machinery where high rigidity and dimensional consistency are critical.
7220 BECCM Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 72 | Bearing Series Code | Denotes a specific angular contact bearing design with optimized internal geometry. |
| 20 | Bore Diameter Code (100 mm) | Indicates a standard 100 mm bore size for consistent shaft mounting. |
| Open (Seal Type) | No seals or shields | Enables high-speed operation and allows for customized lubrication systems. |
| P6 (Tolerance Class) | High Precision Grade | Ensures tight dimensional control (bore: -0.015mm to 0) for precise applications. |
7220 BECCM Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The 40° contact angle provides an excellent balance between radial and axial load capacity, making it highly effective for combined loads. The calculated load points and shoulder diameters ensure optimal force distribution.
High-Speed Capability: The brass cage provides superior guidance and stability, contributing to the high limiting speed of 5,600 rpm. The open design facilitates efficient lubrication and heat dissipation.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, this bearing offers high fatigue life and wear resistance. The robust material ensures reliable performance under the specified temperature range of -30° to 110 °C.
Precision Engineering: With a P6 tolerance class and tight dimensional controls on the bore, outside diameter, and width, this bearing guarantees precise fits and smooth operation in demanding applications.
7220 BECCM Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and grinding spindles requiring precision and rigidity.
- Precision Gearboxes: Industrial transmissions where combined loads and high rotational accuracy are critical.
- Pumps and Compressors: Applications involving significant axial thrust in addition to radial loads.
- Industrial Robotics: Joint and arm mechanisms demanding high precision and reliability.
- High-Speed Motors: Electric motor applications requiring stable operation at elevated speeds.
