7009 CEGA/HCP4AL1
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7009 CEGA/HCP4AL1 Bearing Product Overview & Core Advantages
The 7009 CEGA/HCP4AL1 is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single bearing features a 15° contact angle and is manufactured to P4A super-precision tolerance, ensuring minimal runout and vibration. Its core advantages include the ability to handle combined radial and axial loads simultaneously, superior high-speed capability facilitated by its phenolic cage and ceramic balls, and outstanding operational rigidity. Preloaded to Extra Light (Class A), it is ideal for spindle arrangements where precise rotational accuracy and high reliability are paramount.
7009 CEGA/HCP4AL1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Universal Matchable bearing designed for face-to-face (DF) mounting. |
| GA | Indicates a specific preload group: Extra Light / Class A. |
| HC | Refers to the hybrid ceramic construction (Ceramic balls with steel rings). |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7 standards. |
| L1 | Specifies a light preload within the defined preload class. |
7009 CEGA/HCP4AL1 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends service life, especially in high-speed applications.
- Phenolic Resin Cage: This lightweight and robust cage material offers excellent dimensional stability and low friction, contributing to the bearing's high limiting speed of 46,000 rpm.
- Super-Precision P4A Tolerance: Guarantees extremely tight bore diameter and outside diameter tolerances for superior running accuracy, reduced vibration, and enhanced system performance.
- Optimized Preload (Class A): The extra light preload minimizes friction and heat generation while ensuring sufficient stiffness for precise positioning in universal matching sets.
7009 CEGA/HCP4AL1 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications demanding the utmost in rotational accuracy.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM electric motors.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instruments.
