7022 CD/HCP4ATBTA
Hybrid Ceramic Super Precision Bearings
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7022 CD/HCP4ATBTA Bearing Product Overview & Core Advantages
The 7022 CD/HCP4ATBTA is a precision angular contact ball bearing configured as a triplex back-to-back (TBT) matched set. Engineered for the most demanding applications, this bearing arrangement delivers exceptional system rigidity and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class and featuring ceramic balls, it is optimized for high-speed operation and long service life in precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series and size designation (Bore: 110mm, OD: 170mm, Width: 84mm) |
| CD | Indicates a matched bearing set with specific preload and universal matching |
| HC | Hybrid Ceramic construction, signifying ceramic balls and steel rings |
| P4A | High precision tolerance class for superior running accuracy |
| TBT | Triplex Back-to-Back arrangement of three bearings for maximum rigidity |
| A | Extra light preload classification |
7022 CD/HCP4ATBTA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables higher limiting speeds compared to all-steel bearings. This construction also provides superior resistance to electrical arcing and operates effectively with minimal lubrication.
Enhanced Rigidity & Load Capacity: The triplex back-to-back (TBT) configuration creates an extremely rigid bearing system capable of withstanding heavy combined radial and axial loads and substantial moment loads. This makes it ideal for applications where shaft deflection must be minimized.
High-Speed Performance: The lightweight phenolic resin cage, combined with the low-density ceramic balls and optimized internal geometry, allows for a high limiting speed of 16,250 rpm. This is critical for spindle and other high-velocity applications.
Precision Engineering: Manufactured to ABEC 7 / P4A tolerance standards with a 15-degree contact angle, this bearing ensures smooth, quiet operation with minimal vibration, contributing to the high accuracy of the final application.
7022 CD/HCP4ATBTA Bearing Typical Application Areas
This high-performance triplex bearing set is specifically designed for advanced machinery requiring the utmost in precision, speed, and rigidity. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing spindles.
- High-Frequency Motors: Motors and generators operating at very high rotational speeds.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
