S7204 CDGC/P4A
Sealed Super Precision Angular Contact Ball Bearings
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S7204 CDGC/P4A Bearing Product Overview & Core Advantages
The S7204 CDGC/P4A is a high-precision, single-row angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. Engineered to a P4A tolerance class, it offers superior running accuracy and dimensional stability. Its key advantage lies in its ability to support combined loads, handling significant radial loads and one-directional axial loads simultaneously. The combination of a phenolic cage, high-grade chrome steel, and moderate preload (Class C) makes it an ideal choice for high-speed spindles and other precision machinery requiring high reliability and long-term performance.
S7204 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| S7 | Bearing series, indicating a high-precision design | Optimized for precision and high-speed operation |
| 204 | Standard bore (20mm) & dimension series | Ensures dimensional interchangeability |
| CD | Contact angle of 15° | Optimized for axial load capacity and high-speed performance |
| GC | Moderate preload (Class C) | Increases system rigidity and reduces vibration |
| P4A | High precision tolerance class | Guarantees tight running accuracy and low noise |
S7204 CDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: Manufactured to P4A tolerance standards with a 15° contact angle and moderate preload, this bearing provides exceptional rotational accuracy and system stiffness, minimizing deflection under load.
Superior Load Capacity: The optimized internal geometry and high-grade chrome steel construction enable a high dynamic load rating of 2678 lbf, making it capable of handling demanding combined radial and axial loads.
Optimized High-Speed Performance: The lightweight phenolic cage ensures stable operation and low centrifugal forces, contributing to the high limiting speed of 75,000 rpm. The standard grease lubrication is suitable for the specified operating temperature range.
Universal Matching Capability (SU): This bearing is universally matchable, allowing two bearings to be paired in a back-to-back (DB) or face-to-face (DF) arrangement to support axial loads in both directions, enhancing application flexibility.
S7204 CDGC/P4A Bearing Typical Application Areas
The S7204 CDGC/P4A is engineered for high-performance applications, including:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and other high-precision, high-speed machining equipment.
- Precision Rotary Systems: Used in high-speed robotics, rotary tables, and indexing heads.
- High-Frequency Motors and Spindles: Ideal for applications requiring minimal runout and high rotational accuracy.
- Medical and Laboratory Equipment: Where reliability, quiet operation, and precision are critical.
