S7009 CB/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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S7009 CB/P4ADGA Bearing Product Overview & Core Advantages
The S7009 CB/P4ADGA is a precision double-row angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered with P4A tolerance class and extra light preload (Class A), this bearing delivers superior rotational precision and minimal running torque. Its universal matchable (SU) design allows for flexible mounting arrangements while maintaining optimal performance. The bearing excels in handling combined loads (radial and bidirectional axial loads) simultaneously, making it ideal for high-speed, high-rigidity applications where space constraints and precision are critical.
S7009 CB/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CB | Specific internal clearance and preload designation | Optimized for high-speed operation with controlled running torque |
| P4A | High precision tolerance class | Exceptional dimensional and running accuracy for precision applications |
| DGA | Grease lubrication specification | Pre-lubricated for immediate operation and extended service life |
S7009 CB/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double-row angular contact design provides superior radial and axial stiffness, enabling the bearing to handle combined loads effectively. With a 15° contact angle and optimized internal geometry, it offers excellent bidirectional axial load capacity while maintaining high radial load performance.
Precision Performance: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, this bearing ensures minimal runout and vibration. The phenolic cage provides excellent dimensional stability and reduced friction, contributing to smooth operation at high speeds.
High-Speed Capability: The combination of precision manufacturing, optimized internal clearance, and phenolic cage enables operation at limiting speeds up to 46,000 rpm. The sealed design with grease lubrication ensures consistent performance throughout the speed range.
Long Service Life: Constructed from chrome steel for both rings and balls, the bearing offers excellent wear resistance and durability. The sealed configuration with pre-applied grease provides protection against contamination and extends maintenance intervals.
S7009 CB/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring exceptional accuracy and rigidity
- High-Speed Motors: Electric motors and spindles operating at elevated speeds with combined loading conditions
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus demanding minimal vibration
- Robotics & Automation: Robot arm joints, precision positioning systems, and automated manufacturing equipment
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems requiring reliable high-speed operation
- Aerospace Components: Guidance systems, actuators, and auxiliary power units where precision and reliability are critical
