7222 CDGA/P4A
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 CDGA/P4A Bearing Product Overview & Core Advantages
The 7222 CDGA/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features a 15° contact angle and P4A tolerance class for superior running accuracy. Its extra light preload (Class A) ensures minimal deflection under operational stresses, making it ideal for high-speed spindles and precision machinery where high rigidity and rotational precision are critical.
7222 CDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7222 | Basic bearing series with 110mm bore diameter, 200mm outside diameter |
| CD | Universal matching designation, optimized for high-speed operation |
| G | Pre-set extra light preload (Class A) |
| A | 15° contact angle for optimal axial load capacity |
| P4A | Ultra-precision tolerance class with enhanced dimensional and running accuracy |
7222 CDGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and running accuracy.
High-Speed Capability: Features a phenolic cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 16,000 rpm while maintaining stability.
Superior Load Capacity: With a radial dynamic load rating of 40,050 lbf and radial static load rating of 37,350 lbf, this bearing delivers reliable performance under significant combined loads.
Optimized Material Selection: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability in precision applications.
Universal Matching Design: The CD designation allows for precise universal matching in sets of two bearings, ensuring optimal preload and performance characteristics when mounted in pairs.
7222 CDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC equipment requiring exceptional rotational accuracy
- High-Speed Spindles: Grinding machines, milling spindles, and other high-speed rotating applications
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Robotics & Automation: Precision robotic joints and automated manufacturing systems
- Aerospace Components: Guidance systems, flight control mechanisms, and other critical aerospace applications
