7022 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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7022 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7022 CD/HCP4ADGA is a high-precision angular contact ball bearing engineered for applications demanding exceptional accuracy and performance. This universally matchable (SU) bearing is designed to accommodate combined loads, handling significant radial loads and axial loads in one direction simultaneously. Its construction with a Phenolic cage and Ceramic balls contributes to superior high-speed capabilities and reduced rotational mass. Manufactured to the exacting P4A tolerance class, it offers extremely tight dimensional control for precise shaft positioning and smooth operation in demanding industrial environments.
7022 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing series and size designation (Bore: 110mm, OD: 170mm). |
| CD | Indicates a 15° contact angle and specific internal design optimized for high-speed operation. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), offering advantages in speed, stiffness, and longevity. |
| P4A | Denotes an ultra-high precision tolerance class with enhanced running accuracy and dimensional stability. |
| DGA | Specifies the Universal Matchable (SU) arrangement and Extra Light (A) preload for optimal rigidity in paired sets. |
7022 CD/HCP4ADGA 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 (16,250 rpm) and extended service life, especially in lubricant-starved conditions.
Optimized Internal Geometry: The 15° contact angle provides an excellent balance between axial and radial load capacity, making it ideal for complex combined load scenarios.
High-Speed Phenolic Cage: The lightweight and robust Phenolic (resin) cage ensures stable ball guidance at very high rotational speeds, contributing to smooth and quiet operation.
Precision & Rigidity: Manufactured to P4A tolerances, this bearing ensures minimal runout and precise rotational accuracy. The universal matchable (SU) design allows two bearings to be paired in a back-to-back or face-to-face arrangement to create a preloaded set, delivering high system rigidity and improved rotational accuracy.
7022 CD/HCP4ADGA Bearing Typical Application Areas
The 7022 CD/HCP4ADGA is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and auxiliary power units.
- High-Frequency Motors and Spindles: Where extreme rotational accuracy and low vibration are required.
