7222 ACD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7222 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7222 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in a light preload (Class B) matched set, it delivers optimized performance in high-speed spindle arrangements. Its 25° contact angle provides superior combined load capacity, efficiently handling both radial and axial loads simultaneously. Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, making it ideal for high-precision, high-rigidity applications where positioning accuracy is critical.
7222 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, Universal Matchable Design | Optimized for combined radial and axial loads; enables flexible mounting arrangements |
| P4A | High Precision Tolerance Class (Equivalent to ABEC 7) | Exceptional running accuracy and minimal vibration for precision applications |
| DGB | Light Preload (Class B) in Matched Set | Reduced deflection under load, improved stiffness, and consistent performance |
7222 ACD/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact design with 25° contact angle provides superior stiffness and can withstand significant combined loads. With a dynamic load rating of 62,100 lbf and static load rating of 70,875 lbf, this bearing maintains stability under demanding operating conditions.
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and runout control. The phenolic cage offers excellent dimensional stability and reduced friction at high speeds.
High-Speed Performance: The optimized ball complement (16 balls of 26.988mm diameter) and precision geometry enable a limiting speed of 16,250 rpm. The phenolic cage contributes to reduced centrifugal forces and smooth operation at elevated rotational speeds.
Material Excellence: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and dimensional stability across the operating temperature range of -30°C to 110°C.
7222 ACD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications
- Precision Industrial Equipment: High-speed routers, PCB drilling machines, and precision gearboxes
- Robotics & Automation: Industrial robot arms, precision positioning systems, and rotary tables
- Aerospace & Defense: Gyroscopes, radar systems, and navigation equipment requiring exceptional accuracy
- Medical Equipment: High-speed dental handpieces, medical imaging devices, and laboratory instrumentation
