7022 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7022 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7022 ACD/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. Its design is optimized to handle combined loads, accommodating significant radial and axial forces simultaneously. Featuring a 25° contact angle and P4 (ABEC-7) tolerance class, this bearing delivers superior running accuracy, high rigidity, and reliable operation in high-speed scenarios. The use of a phenolic cage and ceramic balls contributes to reduced weight, lower friction, and enhanced limiting speed capabilities, making it an ideal solution for advanced machinery.
7022 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Standard bearing series designation, indicating the bearing dimensions (110mm bore, 170mm OD, 28mm width). |
| AC | Angular Contact design, optimized for combined loads. |
| D | Signifies a high contact angle of 25°. |
| HCP4A | Indicates a P4 (ABEC-7) tolerance class and a specific internal design/clearance for high-precision, preloaded arrangements. |
7022 ACD/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design with a 25° contact angle provides robust support against combined loads, ensuring stable operation under demanding conditions.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls minimizes centrifugal forces, enabling a high limiting speed of 13,000 rpm.
- Enhanced Durability and Precision: Manufactured to P4 tolerance standards, this bearing guarantees minimal runout and vibration, which is critical for precision applications. The open seal type allows for customized lubrication strategies to optimize performance.
- Preload Availability: The bearing is supplied with a preload, ensuring zero clearance and immediate high-stiffness performance upon installation, which is vital for applications requiring high positional accuracy.
7022 ACD/HCP4A Bearing Typical Application Areas
The 7022 ACD/HCP4A is ideally suited for high-performance machinery where precision and speed are paramount. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme accuracy and rigidity.
- High-Frequency Motors and Spindles: Used in applications demanding low inertia and high rotational speeds.
- Precision Robotics: In robotic arms and joints where repeatable positioning and high dynamic loads are common.
- Aerospace and Defense Systems: For gyroscopes, radar systems, and other instrumentation requiring reliable performance under stringent conditions.
