7206 ACD/P4ADFC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7206 ACD/P4ADFC Bearing Product Overview & Core Advantages
The 7206 ACD/P4ADFC is a precision duplex pair of Angular Contact Ball Bearings, pre-mounted in a Face-to-Face (DF) arrangement. This configuration is engineered to provide exceptional high rigidity and stability, making it ideally suited for applications requiring high rotational accuracy and the ability to withstand combined loads (radial and axial loads from both directions). The bearings are pre-lubricated and feature a Moderate preload (Class C), ensuring consistent performance and simplified installation in high-precision machinery.
7206 ACD/P4ADFC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7206 | Basic bearing series, indicating a 30mm bore, 62mm OD, and 16mm single bearing width. |
| AC | Angular Contact design with a 25° contact angle. |
| D | Indicates a Duplex pair of two bearings. |
| P4A | Specifies a high-precision tolerance class (superior to ABEC 7), ensuring minimal runout and vibration. |
| DF | Denotes the Face-to-Face mounting arrangement, which increases moment rigidity. |
| C | Specifies a Moderate preload for optimal stiffness and speed performance. |
7206 ACD/P4ADFC Bearing Structural Features & Performance Benefits
High Rigidity & Stability: The duplex DF arrangement creates a highly rigid bearing system that effectively resists moment loads, making it critical for applications where shaft deflection must be minimized.
Combined Load Capacity: The 25° contact angle is optimized to handle significant axial loads in both directions simultaneously with radial loads, a key feature of angular contact ball bearings.
High-Speed Performance: The lightweight and robust phenolic cage ensures stable operation and low friction, contributing to the high limiting speed of 100,500 rpm. The open design and pre-lubrication facilitate efficient heat dissipation.
Precision Engineering: Manufactured to P4A tolerance class from high-grade chrome steel, this bearing guarantees exceptional running accuracy, low noise, and long service life in demanding conditions.
7206 ACD/P4ADFC Bearing Typical Application Areas
The 7206 ACD/P4ADFC is designed for high-performance applications where precision, speed, and rigidity are paramount. Key industries and machinery include:
- Machine Tool Spindles (e.g., for milling, grinding, and turning centers)
- High-Frequency Spindles and Electric Motors
- Precision Gearboxes and Robotic Drives
- Medical and Dental Equipment
- Advanced Pumps and Compressors
