7228 BCBM
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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7228 BCBM Bearing Product Overview & Core Advantages
The 7228 BCBM is a precision angular contact ball bearing designed for applications requiring exceptional rigidity and high-speed performance. This single row bearing features a 40° contact angle, enabling it to support significant combined loads—both radial and axial loads in one direction. Manufactured to P6 (ABEC-3) tolerance class, it guarantees high running accuracy and reliability. Its optimized internal geometry and brass cage contribute to stable operation at limiting speeds up to 3,600 rpm, making it ideal for demanding industrial environments.
7228 BCBM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| BC | Indicates a 40° contact angle, optimized for high axial load capacity and rigidity. |
| BM | Signifies the bearing is lubricated with high-performance grease suitable for the specified temperature range. |
7228 BCBM Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 40° contact angle and robust single row design provide excellent resistance to combined loads, with a dynamic load rating of 44,775 lbf and static load rating of 47,700 lbf.
- Optimized High-Speed Performance: The brass cage (Cage material: Brass) ensures dimensional stability and reduced friction at high speeds, supporting a limiting speed of 3,600 rpm.
- Precision Engineering: Manufactured to P6 tolerance class with tight dimensional controls on bore diameter (140 mm), outside diameter (250 mm), and width (42 mm) for consistent performance in precision assemblies.
- Superior Material Construction: Both rings and balls are made from chrome steel, offering high wear resistance and durability under demanding operating conditions.
7228 BCBM Bearing Typical Application Areas
The 7228 BCBM is widely used in high-performance machinery where precision and speed are critical. Key applications include:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Gearboxes
- Industrial Robotics and Automation Systems
