7009 CD/P4AQBCA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7009 CD/P4AQBCA Bearing Product Overview & Core Advantages
The 7009 CD/P4AQBCA is a precision quadruplex back-to-back angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This P4A tolerance class bearing is engineered to handle combined loads, offering superior performance in high-speed, high-precision environments. Its matched quadruplex arrangement provides maximum system rigidity and rotational accuracy, making it ideal for demanding machine tool and precision equipment applications.
7009 CD/P4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing series with 45mm bore diameter |
| CD | Contact angle of 15° for optimized load distribution |
| P4A | Ultra-precision tolerance class with enhanced running accuracy |
| QBC | Quadruplex Back-to-Back matched arrangement |
| A | Extra light preload for minimal deflection and high precision |
7009 CD/P4AQBCA Bearing Structural Features & Performance Benefits
High Rigidity & Precision: The quadruplex back-to-back arrangement creates an extremely rigid bearing system capable of withstanding heavy moment loads while maintaining exceptional running accuracy. The P4A tolerance class ensures minimal dimensional variations for superior performance in precision applications.
Optimized Load Capacity: With a 15° contact angle and quadruplex configuration, this bearing delivers excellent performance under combined radial and axial loads. The radial dynamic load rating of 17,122 lbf and static load rating of 20,250 lbf provide reliable operation in demanding conditions.
High-Speed Performance: The phenolic cage material and optimized internal geometry enable operation at limiting speeds up to 46,000 rpm. The light preload and precision manufacturing contribute to smooth operation at high rotational speeds.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, this bearing offers excellent wear resistance and durability. The open design allows for customized lubrication solutions to match specific application requirements.
7009 CD/P4AQBCA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications
- Precision Instrumentation: Measuring equipment, optical systems, and laboratory instruments
- High-Speed Rotary Systems: Dental handpieces, small precision motors, and turbo machinery
- Industrial Automation: Robotics, precision positioning systems, and CNC equipment
- Aerospace Components: Guidance systems, gyroscopes, and precision actuators
