7206 ACD/P4AQFCC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7206 ACD/P4AQFCC Bearing Product Overview & Core Advantages
The 7206 ACD/P4AQFCC is a precision quadruplex matched set of angular contact ball bearings designed for applications requiring exceptional rigidity and accuracy. This P4A tolerance class bearing set is preloaded (Moderate / Class C) and arranged in a Face-to-Face (QFC) configuration, making it ideal for supporting combined loads (radial and axial) in both directions with high running accuracy. Its compact design and superior material construction ensure reliable performance in high-speed and high-precision machinery.
7206 ACD/P4AQFCC Bearing Model Code Explained, Specifications & Naming Convention
- 7206: Basic series designation (70mm OD, 30mm bore, angular contact).
- A: Denotes a 25° contact angle, optimized for higher axial load capacity.
- CD: Indicates a duplex pair with modified internal clearances for specific preload.
- P4A: Specifies the tolerance class, indicating very high precision for dimensional and running accuracy.
- QFC: Denotes the matched arrangement as a Quadruplex Face-to-Face set of four bearings.
- C: Specifies the Moderate preload level for optimal rigidity and speed performance.
7206 ACD/P4AQFCC Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The quadruplex face-to-face arrangement provides exceptional system rigidity, effectively managing complex combined loads and moments. The 25° contact angle enhances axial load carrying capability.
Precision & High-Speed Performance: Manufactured to P4A tolerance class with a phenolic cage, this bearing set ensures minimal vibration and is capable of operating at high rotational speeds (limiting speed of 100,500 rpm). The phenolic cage contributes to lower friction and reduced weight.
Superior Material & Construction: Both rings and balls are made from high-grade chrome steel, providing excellent durability and fatigue resistance. The bearings are pre-lubricated for immediate use and reliable operation within a temperature range of -30°C to 110°C.
7206 ACD/P4AQFCC Bearing Typical Application Areas
This high-precision, high-rigidity bearing set is ideally suited for demanding applications such as:
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arm Joints and Precision Positioning Systems
