7022 ACEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7022 ACEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7022 ACEGA/HCP4AH1 is a single row angular contact ball bearing engineered for applications demanding the highest levels of precision and performance. Positioned in the P4A super-precision tolerance class, it is designed to provide exceptional running accuracy, high rigidity, and reliable operation under high-speed conditions. Its 25° contact angle is optimized to support significant combined loads, effectively managing both radial and axial forces. The use of a phenolic cage and ceramic balls contributes to lower friction, reduced weight, and superior high-speed capabilities, making it an ideal choice for the most demanding industrial environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series, defining the bore diameter (110 mm), outside diameter (170 mm), and width (28 mm). |
| A | Signifies a 25° contact angle, optimized for high axial load capacity. |
| CEGA | Indicates a Universal Matchable (SU) bearing supplied in a set of 3. This allows for precise preload adjustment when mounted in pairs or groups. |
| HC | Refers to the hybrid ceramic construction, featuring steel rings and ceramic balls for enhanced performance. |
| P4A | Denotes the super-precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
| H | Indicates the bearing is pre-lubricated. |
7022 ACEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A tolerance standards with extremely tight dimensional tolerances on the bore, outside diameter, and width, this bearing provides superior shaft positioning accuracy and system rigidity.
Enhanced High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 16,250 rpm. This hybrid construction also minimizes heat generation.
Superior Load Capacity: The 25° contact angle design allows the bearing to efficiently support combined loads, offering a high dynamic load rating of 10,102 lbf and a static load rating of 9,562 lbf.
Universal Matching and Preload: As a Universal Matchable (SU) bearing supplied in a set, it allows for flexible mounting configurations (back-to-back, face-to-face, or tandem) to achieve the exact preload (Extra light / Class A) required for optimal application performance.
7022 ACEGA/HCP4AH1 Bearing Typical Application Areas
The 7022 ACEGA/HCP4AH1 is designed for high-performance machinery where precision, speed, and reliability are critical. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Spindles: In PCB drilling, semiconductor manufacturing, and other precision machining equipment.
- High-Frequency Motors and Spindles: Where low inertia and high rotational accuracy are required.
- Aerospace and Defense Systems: Including gyroscopes, radar systems, and auxiliary power units.
