7222 CD/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7222 CD/P4A Bearing Product Overview & Core Advantages
The 7222 CD/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance under combined loads. Its design is optimized to support significant axial loads in one direction alongside radial loads, making it ideal for high-speed, high-rigidity applications. Manufactured to a P4 (ABEC-7) tolerance class, it ensures exceptional running accuracy and rotational stability. The combination of a phenolic cage and a 15° contact angle contributes to its excellent high-speed capabilities and operational smoothness.
7222 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7222 | Basic bearing series, defining the standard boundary dimensions (Bore: 110 mm, OD: 200 mm, Width: 38 mm). |
| CD | Indicates a specific internal design with a 15° contact angle and optimized internal geometry for high-speed operation and high axial load capacity. |
| P4A | Denotes a high-precision tolerance class equivalent to ABEC-7. This ensures extremely tight dimensional and running accuracy for demanding applications. |
7222 CD/P4A Bearing Structural Features & Performance Benefits
- High Precision and Rigidity: Manufactured to P4A tolerance standards, this bearing provides exceptional dimensional stability and running accuracy, which is critical for minimizing vibration and ensuring precise shaft positioning.
- Optimized for High-Speed Operation: The phenolic resin cage is lightweight and possesses excellent sliding properties, reducing friction and enabling a high limiting speed of 11,000 rpm. The 15° contact angle is ideal for applications requiring high-speed performance with axial loads.
- Superior Load Capacity: With a dynamic load rating of 40,050 lbf and a static load rating of 37,350 lbf, this bearing is designed to handle significant combined radial and axial loads reliably.
- Pre-Lubricated and Open Design: The bearing is supplied with lubricant, ready for immediate use. The open seal type allows for customized re-lubrication schemes and is suitable for applications where heat dissipation is a priority.
7222 CD/P4A Bearing Typical Application Areas
The 7222 CD/P4A is ideally suited for high-performance machinery where precision and speed are paramount. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme accuracy and rigidity.
- High-Frequency Motors and Spindles: Used in electric motors and motorized spindles that operate at very high rotational speeds.
- Precision Gearboxes and Pumps: Provides reliable, low-friction operation in demanding power transmission and fluid handling equipment.
- Aerospace and Defense Systems: Suitable for auxiliary systems and instrumentation requiring high reliability and precision under combined loads.
