7009 ACEGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7009 ACEGB/P4A Bearing Product Overview & Core Advantages
The 7009 ACEGB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class with a 25° contact angle, this bearing excels at handling combined radial and axial loads simultaneously. Its universal matching capability (SU designation) allows for precise preload configuration when mounted in pairs, delivering superior system stiffness and running accuracy for demanding industrial applications.
7009 ACEGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Impact |
|---|---|---|
| 7009 | Basic bearing designation (45mm bore, 75mm OD) | Standard bearing dimensions for compatibility |
| AC | Angular Contact design | Optimized for combined loads |
| E | Optimized internal design | Enhanced load capacity and speed performance |
| GB | Light preload (Class B) | Reduced deflection and improved positioning accuracy |
| P4A | High precision tolerance class | Superior running accuracy and low vibration |
7009 ACEGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal dimensional variations, providing exceptional rotational accuracy and consistent performance in precision applications.
Optimized Internal Geometry: With a 25° contact angle and 21 precision balls (7.144mm diameter), the bearing delivers superior axial load capacity while maintaining excellent radial load handling capabilities.
Advanced Cage Design: The phenolic resin cage offers excellent strength-to-weight ratio, reduced friction, and superior performance at high rotational speeds up to 46,000 rpm.
Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be precisely paired with another identical bearing to achieve optimal preload configuration and system rigidity.
7009 ACEGB/P4A Bearing Typical Application Areas
Machine Tool Spindles: High-speed machining centers and precision grinding spindles requiring exceptional running accuracy and thermal stability.
Precision Robotics: Robot arm joints and rotary tables where high rigidity and positioning repeatability are critical.
Medical Equipment: High-speed dental handpieces and medical imaging systems demanding vibration-free operation and long service life.
Aerospace Systems: Guidance systems and aircraft instrumentation requiring precision bearings with reliable performance under varying operational conditions.
