7009 CE/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7009 CE/P4ADGA Bearing Product Overview & Core Advantages
The 7009 CE/P4ADGA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, it offers extremely tight dimensional and running accuracy. Its Extra Light (Class A) preload ensures minimal deflection under load, providing superior rigidity and precise shaft positioning. The bearing is universally matchable (SU), allowing for flexible mounting in pairs to handle combined loads, including significant axial loads in both directions, thanks to its 15° contact angle. Pre-lubricated for immediate use, it is an ideal solution for high-reliability, high-precision spindles and machinery.
7009 CE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| C | 15° nominal contact angle. |
| E | Optimized internal design for high performance. |
| P4A | High precision tolerance class exceeding ABEC 7, with specific running accuracy requirements. |
| D | Indicates a specific preload group or manufacturing process. |
| GA | Indicates a specific clearance or preload level (Extra Light / Class A in this case). |
7009 CE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4A tolerance class and Class A preload work in concert to deliver extremely high running accuracy and system stiffness, critical for minimizing vibration and maintaining precision under load.
- Superior Speed Capability: The lightweight phenolic resin cage reduces centrifugal forces, enabling high limiting speeds (up to 46,000 rpm). The open design facilitates efficient lubrication and heat dissipation.
- Optimized Load Capacity: The 15° contact angle and precision-ground raceways are engineered to handle combined radial and axial loads simultaneously. The universal matchable (SU) design allows two bearings to be paired for increased load capacity and moment stiffness.
- Premium Materials: Constructed from vacuum-degassed chrome steel for both rings and balls, ensuring high durability, long service life, and consistent performance.
- Ready-to-Install: The bearing is pre-lubricated, simplifying installation and ensuring immediate, reliable operation.
7009 CE/P4ADGA Bearing Typical Application Areas
The 7009 CE/P4ADGA is specified for high-performance machinery where precision and speed are paramount. Key applications 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 other high-RPM applications.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
