71824 ACDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71824 ACDGA/P4 Bearing Product Overview & Core Advantages
The 71824 ACDGA/P4 is a single row angular contact ball bearing designed for applications demanding high precision and superior running accuracy. Manufactured to P4 tolerance class, this bearing excels in scenarios requiring exceptional rotational stability. Its 25° contact angle is optimized to support significant combined loads, handling both radial and axial forces efficiently. The bearing comes pre-lubricated and is part of a Universal Matchable (SU) set, allowing for precise preload control when mounted in pairs. This combination of features makes it an ideal solution for high-speed spindles and other precision machinery.
71824 ACDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71824 | Basic bearing designation, indicating a 120mm bore, 150mm OD, and 16mm width. |
| AC | Angular Contact design with a 25° contact angle. |
| DGA | Duplex arrangement designation. "DG" indicates a face-to-face (DF) mounting configuration, and "A" signifies an Extra light preload class. |
| P4 | Tolerance class P4, denoting very high dimensional and running accuracy exceeding standard ABEC 7 specifications. |
71824 ACDGA/P4 Bearing Structural Features & Performance Benefits
High-Precision Construction: The bearing is manufactured to P4 tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width. This ensures minimal runout and superior rotational accuracy for demanding applications.
Optimized Load Capacity: The 25° contact angle is engineered to effectively support combined radial and axial loads. With a dynamic load rating of 7020 lbf and a static load rating of 9562 lbf, it offers reliable performance under strenuous operating conditions.
High-Speed Capability: The lightweight phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 16,250 rpm. This makes the bearing suitable for high-speed machinery like spindles.
Universal Matching (SU): As a Universal Matchable bearing, two identical bearings can be paired in a face-to-face (DF) arrangement to achieve a specific, controlled preload without selective mounting, simplifying installation and enhancing system rigidity.
71824 ACDGA/P4 Bearing Typical Application Areas
The 71824 ACDGA/P4 is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Applications requiring ultra-high rotational accuracy.
- High-Frequency Motors: Spindles for PCB drilling and other high-RPM electric motors.
- Robotic Arm Joints: Where precise positioning and high rigidity are critical.
