S7024 ACDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S7024 ACDGA/HCP4A
Basic Information
System of measurement
Metric
Weight
1.78 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
180 mm
Outside diameter tolerance
-0.004mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
24975 lbf
Radial static load rating
26100 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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S7024 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The S7024 ACDGA/HCP4A is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional rigidity and rotational accuracy. This sealed bearing features a 25° contact angle and is manufactured to P4A tolerance class, ensuring minimal runout and superior performance. Its design is optimized to simultaneously handle combined radial and axial loads from both directions, making it an ideal, compact solution for high-speed spindles and other precision machinery where reliability is paramount.
S7024 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| AC | Angular Contact design with a 25° contact angle | Optimized for handling combined loads. |
| DGA | Double Row, "A" preload (Extra Light) | Provides high rigidity and precise running accuracy with minimal friction. |
| HC | Hybrid Ceramic (Silicon Nitride balls with steel rings) | Enables higher speed capability, reduced wear, and longer service life. |
| P4A | High Precision Tolerance Class | Guarantees tight dimensional and running accuracy for superior performance. |
S7024 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design significantly increases the bearing's moment stiffness and its ability to support combined radial and axial loads from both directions, making it exceptionally stable under complex loading conditions.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, lowers operating temperatures, and allows for a high limiting speed of 10,000 rpm. The integral seals help retain lubrication and exclude contaminants.
- Precision & Longevity: Manufactured to P4A precision standards with an extra light preload, this bearing ensures minimal vibration and high running accuracy. The hybrid ceramic construction offers excellent resistance to wear and a longer operational life, especially in high-speed applications.
- Universal Matchability (SU): This bearing is universally matchable, allowing multiple bearings to be mounted in a tandem arrangement to share loads and further enhance system rigidity and capacity.
S7024 ACDGA/HCP4A Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Speed Motors: Motors and drives requiring high accuracy and speed.
- Medical Equipment: Centrifuges and high-speed dental handpieces.
