7009 CDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7009 CDGC/P4A Bearing Product Overview & Core Advantages
The 7009 CDGC/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Operating under the stringent P4A tolerance class, this bearing is engineered to handle combined loads efficiently, with a 15° contact angle optimizing performance for high axial and radial load scenarios. Its single bearing configuration with a moderate preload (Class C) ensures immediate operational stability and reduced vibration. Manufactured from high-grade chrome steel and featuring a phenolic cage, it is an ideal solution for high-speed and high-precision machinery where reliability is paramount.
7009 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| CD | 15° Contact Angle | Optimized for handling combined radial and axial loads. |
| GC | Moderate Preload (Class C) | Provides high rigidity and reduces deflection for enhanced precision. |
| P4A | High Precision Tolerance Class | Guarantees extremely tight dimensional and running accuracy for superior performance. |
7009 CDGC/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 15° contact angle and a moderate preload (Class C) provides exceptional system stiffness, minimizing axial and radial play under load. This is critical for maintaining accuracy in high-speed applications.
- Superior Load Capacity: Engineered as an angular contact bearing, it is specifically designed to support significant combined loads (simultaneous radial and axial forces), making it more versatile than standard deep groove ball bearings.
- Optimized High-Speed Performance: The lightweight phenolic cage ensures stability and reduces centrifugal forces, contributing to the high limiting speed of 46,000 rpm. The open design allows for efficient lubrication management.
- Precision Engineering: Manufactured to P4A tolerance class with tight bore, outer diameter, and width tolerances, this bearing ensures consistent, high-precision performance and reliable universal matchability (SU) in sets.
7009 CDGC/P4A Bearing Typical Application Areas
The 7009 CDGC/P4A is ideally suited for high-performance machinery where precision and speed are critical. Key applications include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme accuracy and rigidity.
- Precision Grinding Spindles: Where minimal runout and vibration are essential for fine surface finishes.
- High-Frequency Motors and Spindles: Utilized in applications demanding rapid acceleration and deceleration.
- Industrial Pumps and Compressors: For reliable operation under significant axial and radial loads.
