7206 ACD/P4ADGB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7206 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7206 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universally matchable (SU) bearing supplied in a pre-set pair, it is engineered to accommodate combined loads—simultaneously handling significant radial and axial loads in both directions. Its P4A tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other high-performance machinery. The combination of a phenolic cage and a 25° contact angle provides outstanding operational stability and speed capability.
7206 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle, optimized for combined loads. |
| D | Indicates the bearing is part of a universally matchable (SU) pair. Two such bearings can be mounted together in any combination to achieve the required preload. |
| P4A | Denotes a super-precision tolerance class, with extremely tight limits on bore, outside diameter, and width, ensuring minimal runout and vibration. |
| DB | Specifies a back-to-back (DB) mounting arrangement for the matched set. This configuration provides high rigidity and moment load capacity. |
7206 ACD/P4ADGB Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The double-row angular contact design and back-to-back mounting create a highly rigid bearing system capable of supporting substantial combined radial and axial loads from both directions.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized internal geometry and 25° contact angle contribute to a high limiting speed of 100,500 rpm.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing guarantees exceptional running accuracy, low noise, and minimal heat generation, which is critical for precision machining and high-speed applications.
- Universal Matchability: As a Universal Matchable (SU) bearing, it offers flexible mounting options and simplifies the assembly of preloaded duplex sets, reducing inventory requirements.
7206 ACD/P4ADGB Bearing Typical Application Areas
The 7206 ACD/P4ADGB is ideally suited for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, precision grinders.
- High-Frequency Motors: Spindles for routers and small machining centers.
- Medical Equipment: High-speed centrifuges and dental handpieces.
- Robotics: Precision joints and arm assemblies requiring high rigidity.
