S7009 CD/P4AQBCC
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7009 CD/P4AQBCC Bearing Product Overview & Core Advantages
The S7009 CD/P4AQBCC is a precision quadruplex matched bearing set designed for applications requiring exceptional rotational accuracy and rigidity. This back-to-back quadruplex arrangement provides superior system stiffness and can accommodate combined radial and axial loads. Manufactured to P4A tolerance class with a moderate preload (Class C), it ensures reliable performance in high-precision machinery. Its sealed design with phenolic cage and grease lubrication makes it suitable for demanding operational environments.
S7009 CD/P4AQBCC Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7009 | Basic bearing designation with 45mm bore, 75mm OD |
| CD | 15° contact angle design |
| P4A | High precision tolerance class |
| QBCC | Quadruplex Back-to-Back arrangement with Class C preload |
S7009 CD/P4AQBCC Bearing Structural Features & Performance Benefits
Exceptional Rigidity: The quadruplex back-to-back configuration creates an extremely rigid bearing system capable of withstanding heavy moment loads and maintaining precise shaft positioning under demanding conditions.
High Load Capacity: With a radial dynamic load rating of 17,122 lbf and static load rating of 20,250 lbf, this bearing set delivers reliable performance under significant combined radial and axial loads.
Precision Performance: Manufactured to P4A tolerance standards with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for high-accuracy applications.
Optimized High-Speed Operation: The phenolic cage material and 15° contact angle contribute to stable performance at the limiting speed of 46,000 rpm, while the sealed design retains lubrication effectively.
Long Service Life: Constructed from chrome steel for both rings and balls, with proper grease lubrication and sealing, providing extended operational life within the temperature range of -30°C to 110°C.
S7009 CD/P4AQBCC Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring extreme rigidity and accuracy
- Precision Gearboxes: Industrial transmission systems where minimal deflection and high load capacity are critical
- Aerospace Components: Flight control systems, actuator mechanisms, and auxiliary power units
- Medical Equipment: High-speed dental handpieces, surgical robotics, and diagnostic imaging systems
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages, and inspection equipment
- Test and Measurement Instruments: Coordinate measuring machines and optical alignment systems
