71816 ACD/P4DGA
71800 Series Super Precision Angular Contact Ball Bearings
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71816 ACD/P4DGA Bearing Product Overview & Core Advantages
The 71816 ACD/P4DGA is a super-precision angular contact ball bearing designed for the most demanding applications. Its core advantage lies in its ability to handle combined loads (radial and axial) simultaneously with exceptional accuracy and stability. Manufactured to a P4 tolerance class, it guarantees ultra-precise running characteristics. The Universal Matchable (SU) design allows two bearings to be paired in a universal arrangement, providing high system rigidity and simplifying installation. This bearing is pre-lubricated and features an open design, optimized for controlled, high-speed environments where maximum performance is critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71816 | Basic bearing series and size designation (80mm bore, 100mm OD, 20mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Optimized internal geometry for high-speed operation. |
| P4 | Indicates a super-precision tolerance class for minimal runout and vibration. |
| DGA | Universal Matchable (SU) bearing pair with an Extra Light (A) preload. |
71816 ACD/P4DGA Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design and the ability to be mounted in a universal pair (SU) create a highly rigid bearing system capable of supporting significant combined radial and axial loads.
- Super-Precision Performance: Manufactured to P4 tolerance standards, this bearing ensures extreme rotational accuracy, low noise, and minimal heat generation, which is critical for high-speed spindles.
- High-Speed Capability: The phenolic cage material and optimized internal design contribute to a high limiting speed of 28,000 rpm, making it suitable for demanding rotational applications.
- Optimized for Matched Sets: The Universal Matchable (SU) feature ensures that any two bearings can be paired without selective matching, reducing inventory complexity and ensuring consistent preload and performance in the application.
71816 ACD/P4DGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors: Spindles for CNC applications.
- Medical Equipment: High-speed dental handpieces and imaging devices.
- Robotics: Precision joints and arm assemblies.
