71824 ACD/P4DGA
71800 Series Super Precision Angular Contact Ball Bearings
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71824 ACD/P4DGA Bearing Product Overview & Core Advantages
The 71824 ACD/P4DGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This universal matchable (SU) bearing features a 25° contact angle and P4 tolerance class precision, delivering superior performance in high-speed and high-rigidity applications. Its optimized design enables it to handle combined loads efficiently while maintaining stable operation under extreme conditions. The phenolic cage and precision-ground chrome steel components ensure consistent performance in critical machinery.
71824 ACD/P4DGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, Universal Matchable Design | Optimized for combined radial and axial loads, enables flexible mounting arrangements |
| P4 | P4 Tolerance Class | Superior running accuracy for high-precision applications |
| DGA | Extra Light Preload (Class A) | Minimal friction for high-speed operation and reduced heat generation |
71824 ACD/P4DGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double-row angular contact design provides exceptional stiffness, enabling the bearing to withstand significant combined loads while maintaining precision. With a radial dynamic load rating of 11,408 lbf and static load rating of 19,125 lbf, it delivers reliable performance under heavy operating conditions.
High-Speed Performance: The phenolic cage and optimized internal geometry contribute to excellent high-speed capability, achieving a limiting speed of 16,250 rpm. The 25° contact angle ensures stable operation at elevated rotational speeds.
Precision Engineering: Manufactured to P4 tolerance class with tight dimensional controls (bore tolerance: -0.004mm to 0, OD tolerance: -0.004mm to 0), this bearing guarantees consistent performance and accurate positioning in precision applications.
Universal Matching Capability: As a universal matchable (SU) bearing, it can be paired with identical bearings in various configurations, providing design flexibility and simplified inventory management.
71824 ACD/P4DGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC equipment requiring high rigidity and exceptional running accuracy
- Precision Grinding Spindles: Applications demanding P4 tolerance class precision and high-speed stability
- Industrial Pumps & Compressors: Equipment requiring reliable performance under combined loads and high rotational speeds
- Robotic Systems: Precision joints and positioning mechanisms needing angular contact bearing performance
- Medical Equipment: High-speed dental handpieces and surgical tools requiring precision bearings with reliable operation
