7024 CD/P4ADGA
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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7024 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7024 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Operating under the stringent P4A tolerance class, this bearing is universally matchable (SU), allowing two bearings to be paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement to optimize performance for specific load conditions. Its 15° contact angle and extra light preload (Class A) make it ideally suited for handling combined loads—simultaneously supporting substantial radial and axial forces—while achieving high rotational speeds. This combination of high precision, high rigidity, and universal matchability establishes it as a superior choice for the most demanding high-speed and high-accuracy machinery.
7024 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Advantage |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and excellent performance under combined radial and axial loads. |
| D | Two Bearings Matched | Indicates the bearing is supplied as a pre-configured, universally matchable pair for enhanced system rigidity. |
| P4A | High Precision Tolerance Class | Exceeds ABEC-7 standards, ensuring extremely tight dimensional and running accuracy for superior performance. |
| GA | Light Preload / Universal Match | The "Universal Matchable (SU)" designation ensures minimal runout and axial play when bearings are paired, providing immediate high rigidity. |
7024 CD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The bearing's design, particularly when used in its pre-matched pair configuration, provides exceptional system stiffness. This enables it to withstand combined loads effectively, making it resistant to deflection under heavy operational stresses.
High-Speed Performance: The phenolic cage is a key contributor to its high-speed capability. This lightweight and robust cage material reduces centrifugal forces and friction, allowing the bearing to reach a limiting speed of 16,000 rpm. The 15° contact angle further optimizes it for rapid rotation.
Precision Engineering: Manufactured to P4A tolerance class with tight bore, outside diameter, and width tolerances, this bearing guarantees minimal vibration and precise shaft positioning, which is critical for applications requiring high rotational accuracy.
Material Quality: Constructed from chrome steel for both rings and balls, the bearing offers high durability, wear resistance, and a long operational lifespan under demanding conditions.
7024 CD/P4ADGA Bearing Typical Application Areas
The 7024 CD/P4ADGA is engineered for high-performance applications where precision, speed, and rigidity are non-negotiable. Its primary use cases include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme accuracy and rigidity.
- Precision Grinding Spindles: Where minimal runout and high rotational stability are paramount.
- High-Frequency Motors and Spindles: Used in applications such as PCB drilling and high-speed routing.
- Aerospace & Defense Systems: Including gyroscopes, radar systems, and other precision instrumentation.
- Medical Equipment: Such as high-speed dental handpieces and imaging device rotors.
