S7024 ACD/P4AQGA
Sealed Super Precision Angular Contact Ball Bearings
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S7024 ACD/P4AQGA Bearing Product Overview & Core Advantages
The S7024 ACD/P4AQGA is a P4A ultra-precision, double row angular contact ball bearing designed for the most demanding applications. Engineered to accommodate combined radial and axial loads simultaneously, it features an Extra Light (A) preload and is supplied as part of a universally matchable (SU) set of four bearings. This configuration ensures exceptional running accuracy, high system rigidity, and smooth, quiet operation, making it ideal for high-speed, high-precision spindles and other critical machinery.
S7024 ACD/P4AQGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Double row angular contact ball bearing design with a 25° contact angle. |
| P4A | Denotes an ultra-precision tolerance class (superior to ABEC 7 / ISO P4), ensuring minimal runout and vibration for supreme rotational accuracy. |
| QGA | Indicates the bearing is supplied as part of a universally matchable (SU) set of four bearings (Q), pre-lubricated with grease (G), and features an Extra Light preload (A). |
S7024 ACD/P4AQGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial stiffness, enabling the bearing to handle significant combined loads with minimal deflection. The optimized 25° contact angle effectively manages thrust loads in both directions.
- Ultra-Precision Performance: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing guarantees exceptional running accuracy, low noise, and minimal vibration, which is critical for high-precision machining.
- Optimized for High-Speed Operation: The combination of the lightweight phenolic cage, precision-ground chrome steel components, and extra light preload allows for a high limiting speed of 10,000 rpm, reducing centrifugal forces and heat generation.
- Pre-Lubricated & Sealed: The bearing comes pre-greased and sealed, offering long-term, maintenance-free operation by effectively retaining lubricant and excluding contaminants.
S7024 ACD/P4AQGA Bearing Typical Application Areas
The S7024 ACD/P4AQGA is ideally suited for high-performance applications requiring extreme precision and speed, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Speed Machining Centers
- Precision Grinding Spindles
- Industrial High-Frequency Motors
- Aerospace & Defense Positioning Systems
