S7009 ACDGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7009 ACDGB/P4A Bearing Product Overview & Core Advantages
The S7009 ACDGB/P4A is a precision single-row angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. Engineered to accommodate combined loads, it efficiently handles both radial and significant one-directional axial loads simultaneously. Its P4A super-precision tolerance class and Universal Matchable (SU) designation ensure superior running accuracy and the ability to be mounted in preloaded sets for maximum system stiffness. This bearing is optimized for high-speed operation up to 46,000 rpm, making it an ideal choice for demanding, high-reliability machinery.
S7009 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7009 | Basic bearing series and size designation (45mm bore, 75mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| DGB | Duplex arrangement with a Light preload (Class B) for high rigidity. |
| P4A | Super-precision tolerance class, exceeding ABEC 7 standards for exceptional running accuracy. |
S7009 ACDGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design, combined with the Universal Matchable (SU) feature and light preload, provides a very stiff and precise rotational unit, minimizing deflection under load.
- Superior Load Capacity: The 25° contact angle and optimized internal geometry enable high radial dynamic load rating (6210 lbf) and excellent axial load carrying capacity in one direction.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel components contribute to smooth operation and a high limiting speed of 46,000 rpm.
- Sealed and Lubricated for Life: As a sealed bearing, it is protected from contamination and comes pre-lubricated with grease, offering a maintenance-free solution within its specified temperature range (-30°C to 110°C).
S7009 ACDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Machining Centers
- Precision Grinding Spindles
- High-Speed Robotic Drives
- Advanced Medical and Dental Equipment
