7009 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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7009 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7009 CE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a 15° contact angle and extra light preload (Class A), making it ideal for spindle arrangements requiring minimal deflection under high speeds. Its ceramic balls and phenolic cage contribute to superior high-speed capability and reduced friction. The bearing is supplied pre-lubricated and is designed to handle combined loads efficiently, offering a compact and high-rigidity solution for precision machinery.
7009 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| CE | Ceramic Balls | Enhanced high-speed performance, reduced heat generation, and longer service life. |
| HC | Phenolic Resin Cage | Lightweight cage ideal for high acceleration and deceleration, with excellent lubrication retention. |
| P4A | High Precision Tolerance Class | Superior running accuracy, reduced vibration, and predictable performance in precision assemblies. |
| DGA | Universal Matchable (SU) Arrangement | Bearings can be mounted in any combination (back-to-back, face-to-face, or tandem) to achieve desired stiffness and load capacity. |
7009 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design and universal matching capability allow for configurations that provide high system rigidity and the ability to handle significant combined radial and axial loads from both directions.
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal forces) and a lightweight phenolic cage enables a very high limiting speed of 46,000 rpm, making it suitable for high-frequency spindles.
- Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, ensuring minimal runout and consistent performance in high-precision applications.
- Optimized for Matched Sets: Supplied as one of two bearings in a universally matchable set, this design simplifies installation and guarantees pre-defined preload and performance characteristics when paired.
7009 CE/HCP4ADGA Bearing Typical Application Areas
The 7009 CE/HCP4ADGA is ideally suited for high-performance machinery where precision, high speed, and rigidity are critical. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and high-speed electric motors.
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Robotics: High-accuracy joints and arm assemblies.
