7009 ACBGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7009 ACBGA/P4A Bearing Product Overview & Core Advantages
The 7009 ACBGA/P4A is a single-row angular contact ball bearing designed for applications demanding high precision and superior running accuracy. Manufactured to P4A tolerance class, this bearing delivers exceptional dimensional stability and rotational precision. Its 25° contact angle provides excellent capability for handling combined radial and axial loads in one direction. The phenolic cage and universal matching designation (SU) make it particularly suitable for high-speed applications and precision spindle arrangements where minimal deflection and thermal stability are critical.
7009 ACBGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loads |
| B | 40° Contact Angle | Enhanced axial load capacity |
| GA | Light Preload | Reduced deflection, improved stiffness |
| P4A | High Precision Tolerance | Superior running accuracy and dimensional stability |
7009 ACBGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal dimensional variation, providing exceptional running accuracy critical for high-speed applications. The bore diameter tolerance of -0.004mm to 0 and outside diameter tolerance of -0.004mm to 0 guarantee precise fit and optimal performance.
High-Speed Capability: The phenolic cage material offers excellent strength-to-weight ratio and thermal stability, contributing to the bearing's impressive limiting speed of 41,000 rpm. This makes it ideal for high-speed spindle applications.
Load Capacity: With a radial dynamic load rating of 2034 lbf and radial static load rating of 1530 lbf, this bearing provides reliable performance under significant operational stresses. The 25° contact angle optimizes axial load carrying capacity while maintaining radial load capability.
Universal Matching Design: Designated as Universal Matchable (SU), these bearings can be paired in various configurations (back-to-back, face-to-face, or tandem) to meet specific application requirements for stiffness and load distribution.
7009 ACBGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications
- High-Speed Motors: Electric spindle motors, high-frequency motors, and precision servo systems
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Aerospace Components: Gyroscopes, navigation systems, and aircraft instrumentation
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
