71919 ACDGA/P4AL
71900 Series Super Precision Angular Contact Ball Bearings
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71919 ACDGA/P4AL Bearing Product Overview & Core Advantages
The 71919 ACDGA/P4AL is a single-row angular contact ball bearing engineered for ultra-precision applications requiring exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle provides excellent capacity for combined radial and axial loads in one direction. The phenolic cage and universal matching capability make it ideal for high-speed spindle arrangements where minimal heat generation and precise preload control are critical requirements.
71919 ACDGA/P4AL Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle Design | Optimized for axial load capacity and high-speed operation |
| GA | Extra Light Preload (Class A) | Minimal friction, ideal for high-speed applications requiring low torque |
| P4A | High Precision Tolerance Class | Superior running accuracy and dimensional stability for precision machinery |
71919 ACDGA/P4AL Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance in precision applications.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio and operates effectively at high speeds up to 16,000 rpm, reducing centrifugal forces and maintaining stability.
Optimized Load Capacity: With a 25° contact angle and 28 precision balls of 11.112mm diameter, this bearing achieves a dynamic load rating of 10,395 lbf and static load rating of 11,700 lbf, offering reliable performance under combined loading conditions.
Universal Matching Design: Designed as Universal Matchable (SU), these bearings can be supplied in sets of 3 for precise preload arrangements in spindle applications, ensuring optimal stiffness and running accuracy.
71919 ACDGA/P4AL Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring exceptional running accuracy
- High-Speed Machining Centers: Applications demanding rotational speeds up to 16,000 rpm with minimal vibration
- Precision Instrumentation: Medical equipment, measuring devices, and optical systems requiring P4A tolerance precision
- Aerospace Components: Guidance systems, actuators, and other critical rotating assemblies
- Robotic Systems: High-precision joints and rotary actuators requiring reliable angular contact bearing performance
