7222 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7222 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7222 CD/P4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a pre-set pair, it delivers optimized performance for complex load conditions. Its P4A tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and precision machinery. The combination of a 15° contact angle and extra light preload (Class A) provides superior handling of combined radial and axial loads while maintaining low operating torque and minimal heat generation.
7222 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7222 | Basic bearing series and size designation (110mm bore, 200mm OD) |
| CD | Universal matchable bearing design with 15° contact angle |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DGA | Extra light preload (Class A) for minimal friction and heat generation |
7222 CD/P4ADGA Bearing Structural Features & Performance Benefits
Premium Material Construction: Manufactured from chrome steel for both rings and balls, ensuring high durability and wear resistance under demanding operating conditions.
Optimized Cage Design: Features a phenolic cage that provides excellent strength-to-weight ratio, reduced friction, and superior performance at high speeds up to 16,000 rpm.
Enhanced Load Capacity: The angular contact design with 15° contact angle enables efficient handling of combined loads (radial and axial simultaneously), with dynamic load rating of 64,350 lbf and static load rating of 75,375 lbf.
Precision Engineering: P4A tolerance class guarantees minimal dimensional variations and exceptional running accuracy, critical for applications requiring precise positioning and smooth operation.
Universal Matching Capability: As universal matchable (SU) bearings supplied in matched pairs, they can be arranged in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements.
7222 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling machine spindles
- Precision Industrial Equipment: Coordinate measuring machines, optical instruments, and laboratory equipment
- High-Speed Rotating Machinery: Turbines, compressors, and pumps requiring precise bearing alignment
- Robotics and Automation: Robot arm joints, precision positioning systems, and rotary tables
- Aerospace Components: Guidance systems, aircraft instruments, and satellite mechanisms
