7224 ACDGC/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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7224 ACDGC/P4A Bearing Product Overview & Core Advantages
The 7224 ACDGC/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, this bearing delivers superior running accuracy, making it ideal for demanding scenarios. Its key advantage lies in its ability to accommodate combined loads—significant radial loads and unidirectional axial loads—simultaneously. The 25° contact angle and moderate preload (Class C) contribute to high system stiffness and precise shaft positioning. Manufactured from high-grade chrome steel and featuring a lightweight phenolic cage, it is optimized for high-speed operation up to 10,000 rpm, offering a reliable solution for precision machinery.
7224 ACDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7224 | Bearing series, indicating a specific internal design and load capacity. |
| AC | Angular Contact design with a 25° contact angle. |
| DGC | Designates a specific internal geometry, preload (Moderate / Class C), and Universal Matchable (SU) capability for precise bearing sets. |
| P4A | The tolerance class, denoting very high precision with tight dimensional and running accuracy tolerances. |
7224 ACDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single row angular contact design, combined with a 25° contact angle and moderate preload, provides high axial and radial rigidity. This ensures minimal deflection under load, which is critical for maintaining precision in machine tools and spindles.
- Superior Load Capacity: Engineered to handle combined loads effectively. With a dynamic load rating of 42,750 lbf and a static load rating of 41,175 lbf, it offers reliable performance under demanding operational conditions.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 10,000 rpm. The open design facilitates efficient lubrication management for cooling at high speeds.
- Precision Engineering: The P4A tolerance class guarantees tight control over bearing dimensions (bore, OD, and width) and running accuracy, resulting in smooth, low-vibration operation essential for high-precision applications.
7224 ACDGC/P4A Bearing Typical Application Areas
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers where accuracy and rigidity are paramount.
- Precision Grinding Spindles: Demanding applications requiring exceptional running smoothness and dimensional stability.
- High-Frequency Motors and Spindles: Where high rotational speeds and precise axial location are required.
- Industrial Pumps and Compressors: For shafts subjected to significant combined radial and axial loads.
