7009 CD/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 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7009 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing features a universal matchable (SU) design and an extra light preload (Class A), making it ideal for high-speed spindles and other precision machinery. Its optimized 15° contact angle enables it to handle combined radial and axial loads simultaneously, providing stable performance in demanding operational conditions.
7009 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing series with 45mm bore, 75mm OD, 32mm width |
| CD | Contact angle of 15° |
| P4A | High precision tolerance class with specific running accuracy requirements |
| DGA | Universal matchable bearing (SU designation) in a set of 2 |
7009 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 15° contact angle and precision-ground raceways provide excellent performance under combined radial and axial loads, with dynamic load rating of 10,530 lbf and static load rating of 10,125 lbf.
High-Speed Capability: The phenolic cage and optimized internal geometry enable a limiting speed of 46,000 rpm, making it suitable for high-speed applications.
Universal Matching Design: As a universal matchable (SU) bearing supplied in sets of 2, it can be arranged in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements.
Premium Materials: Constructed from chrome steel for both rings and balls, ensuring durability and long service life in demanding environments.
7009 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- High-Speed Motors - Precision electric motors and servo drives
- Precision Instrumentation - Medical equipment and measuring devices
- Aerospace Components - Gyroscopes and navigation systems
- Robotics - High-accuracy robotic joints and actuators
