71819 ACDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71819 ACDGA/P4 Bearing Product Overview & Core Advantages
The 71819 ACDGA/P4 is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 tolerance class, this bearing delivers superior running accuracy for demanding applications. Its 25° contact angle is optimized to handle significant combined loads (radial and axial), while the universal matching design (SU) allows for flexible mounting arrangements in pairs. The phenolic cage ensures stable operation at high speeds up to 15,000 rpm, making it an ideal solution for precision machinery where high rigidity and minimal runout are critical.
71819 ACDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | Angular Contact Design (25° contact angle) | Optimized for combined radial and axial loads |
| GA | Extra Light Preload (Class A) | Reduced friction and optimal running accuracy |
| P4 | High Precision Tolerance Class | Superior dimensional and running accuracy |
| SU | Universal Matchable | Flexible mounting in pairs for various configurations |
71819 ACDGA/P4 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional stability and minimal runout.
Optimized Load Capacity: The 25° contact angle enables efficient handling of combined loads, with dynamic load rating of 4,680 lbf and static load rating of 5,738 lbf.
High-Speed Performance: The phenolic resin cage provides excellent dimensional stability and low friction at high rotational speeds up to 15,000 rpm.
Precision Preload: Extra light preload (Class A) ensures minimal friction while maintaining precise shaft positioning and system rigidity.
Material Excellence: Chrome steel rings and balls provide superior wear resistance and fatigue life, suitable for operation between -30°C to 110°C.
71819 ACDGA/P4 Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and optical devices
- High-Speed Motors - Servo motors and spindle drives
- Aerospace Components - Guidance systems and precision actuators
- Medical Equipment - Dental handpieces and surgical tools
- Robotics - Precision joints and positioning systems
