7206 CD/P4ADFC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
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7206 CD/P4ADFC Bearing Product Overview & Core Advantages
The 7206 CD/P4ADFC is a precision duplex angular contact ball bearing configured in a Face-to-Face (DF) arrangement. Engineered for applications demanding exceptional rotational accuracy and rigidity, this matched pair is preloaded to Moderate / Class C specifications, ensuring stable performance under combined radial and axial loads. Manufactured to the stringent P4A tolerance class, it delivers superior running accuracy, making it an ideal solution for high-speed, high-precision spindles and machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7206 | Basic bearing series with 30 mm bore, 62 mm OD. |
| C | 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| D | Indicates a duplex pair of bearings. |
| P4A | High precision tolerance class exceeding ABEC 7, ensuring minimal runout and vibration. |
| DF | Face-to-Face arrangement. This configuration provides high moment rigidity and is less sensitive to misalignment. |
| C | Specifies the Moderate preload (Class C) applied to the matched set. |
7206 CD/P4ADFC Bearing Structural Features & Performance Benefits
- Enhanced Rigidity and Stability: The duplex DF arrangement creates a highly rigid bearing system capable of withstanding complex combined loads and moments, minimizing shaft deflection under operation.
- High-Speed Capability: The 15° contact angle and lightweight phenolic resin cage are engineered for reduced centrifugal forces and lower friction, enabling a high limiting speed of 71,500 rpm.
- Superior Precision: Manufactured to P4A tolerance class with tight dimensional control on bore, OD, and width, this bearing ensures exceptional running accuracy for demanding applications.
- Optimized Load Capacity: With a dynamic load rating of 8932 lbf and a static load rating of 7200 lbf, the bearing offers reliable performance under significant stress.
- Pre-Applied Lubrication: The bearing comes lubricated from the factory, ready for immediate installation and initial operation.
7206 CD/P4ADFC Bearing Typical Application Areas
The 7206 CD/P4ADFC is specifically designed for high-performance machinery where precision, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring ultra-fine surface finishes.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM electric motors.
- Medical Equipment: High-speed rotors in dental handpieces and centrifuges.
- Advanced Robotics: Precision joints and arm linkages.
