7009 ACE/HCP4ALDGA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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7009 ACE/HCP4ALDGA Bearing Product Overview & Core Advantages
The 7009 ACE/HCP4ALDGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a 25° contact angle and extra light preload (Class A), making it ideal for high-speed operation up to 46,000 rpm. Its ceramic balls and phenolic cage contribute to reduced friction, lower operating temperatures, and extended service life. This bearing is designed to handle combined loads efficiently and is supplied pre-lubricated for immediate use, offering a compact and reliable solution for high-rigidity applications.
7009 ACE/HCP4ALDGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing designation: 45mm bore, 75mm OD, 32mm width |
| ACE | Angular Contact design with 25° contact angle |
| HC | Hybrid Ceramic balls (steel rings with ceramic balls) |
| P4A | High precision tolerance class (superior to ABEC 7) |
| LD | Light preload designation |
| GA | Universal matchable (SU arrangement) bearing set |
7009 ACE/HCP4ALDGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls provides superior performance characteristics including reduced friction, higher speed capability, and extended lubrication life. The ceramic balls are electrically insulating and provide excellent corrosion resistance.
Precision Phenolic Cage: The phenolic resin cage offers excellent dimensional stability at high speeds, contributing to the bearing's high-speed performance of 46,000 rpm. This lightweight cage material reduces centrifugal forces and provides smooth operation.
Universal Matchable Design: As an SU type universal matchable bearing, these bearings can be mounted in any combination (back-to-back, face-to-face, or tandem) without affecting preload or performance, providing exceptional flexibility in machine design.
High Precision & Rigidity: Manufactured to P4A tolerance class with extra light preload, this bearing delivers exceptional running accuracy and high rigidity, making it suitable for applications requiring minimal deflection under load.
7009 ACE/HCP4ALDGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding spindles
- High-Speed Motors: Servo motors, spindle motors, and high-frequency applications
- Precision Instrumentation: Medical equipment, measuring devices, and laboratory instruments
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
- Turbochargers: High-speed rotating assemblies in automotive and industrial applications
