S7009 ACEGA/P4A
Sealed 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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S7009 ACEGA/P4A Bearing Product Overview & Core Advantages
The S7009 ACEGA/P4A is a high-precision, single-row angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, it provides superior running accuracy, making it ideal for high-speed spindles and precision machinery. Its key advantage lies in its ability to accommodate combined loads—significant radial loads and unidirectional axial loads—simultaneously. The combination of a phenolic cage and premium grease lubrication enables high limiting speeds, while the sealed design ensures long-term, maintenance-free operation. This bearing is also universally matchable, allowing for precise preload configuration in sets for optimal system stiffness.
S7009 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Benefit |
|---|---|---|
| AC | Angular Contact (25° contact angle) | Optimized for handling combined radial and axial loads. |
| EGA | Precision Grease (Lithium soap complex grease) | Enables high-speed operation and provides a wide operating temperature range. |
| P4A | Tolerance Class (Equivalent to ABEC 7) | Guarantees extremely tight dimensional and running accuracy for superior performance. |
S7009 ACEGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust construction enable the bearing to support high radial loads and substantial unidirectional axial loads, providing excellent system stability.
- Superior High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the optimized grease lubrication minimizes friction and heat generation, allowing for a high limiting speed of 46,000 rpm.
- Exceptional Precision: Manufactured to P4A super-precision standards with tight bore, outer diameter, and width tolerances, ensuring minimal runout and vibration for smooth, accurate rotation.
- Maintenance-Free Operation: The sealed design and factory-applied high-performance grease protect against contamination and provide a long service life without relubrication.
S7009 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Where extreme accuracy and rigidity are paramount.
- High-Frequency Motors and Spindles: Demanding low vibration and high rotational speeds.
- Medical and Dental Equipment: Such as high-speed handpieces and scanners.
- Robotic Arms and Precision Gearboxes: Requiring high stiffness and positional accuracy.
