7022 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7022 CD/HCP4A Bearing Product Overview & Core Advantages
The 7022 CD/HCP4A is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and high-speed performance. Featuring a 15° contact angle and P4 (ABEC-7) tolerance class, this bearing is optimized to handle significant axial loads in one direction while supporting radial loads. Its construction with ceramic balls and a phenolic cage contributes to reduced friction, lower operating temperatures, and extended service life, making it ideal for high-reliability, high-rigidity applications.
7022 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Standard bearing series designation indicating bore diameter (110 mm), outside diameter (170 mm), and width (28 mm). |
| CD | Signifies a 15° contact angle and optimized internal design for high-precision applications. |
| HC | Indicates the use of hybrid ceramic balls (silicon nitride), offering superior speed capability and reduced thermal expansion. |
| P4 | Denotes ABEC-7 precision tolerance class, ensuring extremely tight dimensional and running accuracy. |
| A | Specifies that the bearing is supplied with a preload for enhanced rigidity and precise rotational accuracy. |
7022 CD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction and heat generation, enabling higher limiting speeds (14,000 rpm) and longer lubrication life.
Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability at high speeds and contributes to smooth operation under demanding conditions.
High-Precision Design: Manufactured to P4 tolerance class with a 15° contact angle, this bearing delivers superior running accuracy, minimal vibration, and the ability to handle combined loads effectively.
Preload Configuration: The bearing is supplied with a preload, which increases system stiffness and improves positional accuracy, making it suitable for applications requiring minimal deflection.
7022 CD/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors
- Aerospace Actuation Systems
- Medical and Dental Equipment
- Advanced Robotics and Automation
