7226 ACD/P4ADGA
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
7226 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7226 ACD/P4ADGA is a super-precision double row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy, high rigidity, and reliable performance under complex loading conditions. Its design excels at simultaneously supporting substantial combined loads (radial and axial loads from both directions), making it an ideal choice for high-speed spindles and other precision machinery. Manufactured to the stringent P4A tolerance class, this bearing ensures minimal runout and vibration, contributing to superior operational smoothness and extended service life in demanding environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7226 | Basic bearing series and size designation (130mm bore, 230mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Double row design for high rigidity and moment load capacity. |
| P4A | High precision tolerance class (equivalent to ABEC 7), with enhanced dimensional and running accuracy. |
| DG | Universal Matchable (SU arrangement). Two bearings can be universally matched for preload control. |
| A | Extra light preload class, minimizing friction and heat generation for optimal high-speed performance. |
7226 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double row angular contact configuration provides significantly increased radial and axial stiffness compared to single row bearings. This design enables the bearing to handle heavy combined loads and moment loads effectively, ensuring stable and precise shaft positioning.
Optimized High-Speed Performance: The combination of a lightweight, high-strength phenolic cage, a 25° contact angle, and an extra light preload (Class A) minimizes centrifugal forces and friction, allowing for a high limiting speed of 7,500 rpm. This makes it suitable for demanding high-speed applications.
Precision & Reliability: Manufactured as a universally matchable (SU) bearing to P4A precision standards, it guarantees tight dimensional tolerances and exceptional running accuracy. The use of high-grade chrome steel for rings and balls ensures durability and long-term performance consistency.
7226 ACD/P4ADGA Bearing Typical Application Areas
The 7226 ACD/P4ADGA is specifically designed for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Internal and external grinding machines.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Industrial Pumps & Compressors: For applications requiring high axial and radial stiffness.
