71919 ACD/P4ADGB
71900 Series Super Precision Angular Contact Ball Bearings
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71919 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 71919 ACD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. This universally matchable (SU) bearing features a 25° contact angle and light preload (Class B), enabling it to handle combined radial and axial loads simultaneously. Manufactured to P4A tolerance class, it delivers superior running accuracy and rotational precision, making it ideal for high-speed spindles and precision machinery where rigidity and minimal runout are critical.
71919 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | 25° contact angle design, optimized for high axial load capacity and rigidity. |
| P4A | High precision tolerance class, providing extremely tight dimensional and running accuracy. |
| DGB | Universal Matchable (SU) arrangement. Two bearings are supplied as a matched set for precise preload and optimal performance. |
71919 ACD/P4ADGB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The 25° contact angle and double-row design provide superior stiffness, enabling the bearing to withstand significant combined loads while maintaining shaft positioning accuracy.
Precision Performance: Manufactured to P4A tolerance class with a phenolic cage, this bearing ensures minimal vibration and high rotational accuracy, essential for high-speed applications up to 16,000 rpm.
Optimized Universal Matching: Supplied as a universally matchable (SU) set with light preload (Class B), these bearings can be mounted in any combination (back-to-back, face-to-face, or tandem) without performance degradation, simplifying installation and ensuring consistent bearing performance.
Durable Construction: Made from chrome steel for both rings and balls, the bearing offers excellent wear resistance and long service life under demanding operating conditions.
71919 ACD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles - High-precision milling, grinding, and turning centers
- Precision Gearboxes - Industrial transmissions requiring high rigidity and accuracy
- High-Speed Motors - Servo motors and spindle drives
- Medical Equipment - CT scanners and dental handpieces
- Aerospace Components - Guidance systems and flight control mechanisms
- Robotics - Precision joints and articulation points
