71816 ACD/P4TGA
71800 Series Super Precision Angular Contact Ball Bearings
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71816 ACD/P4TGA Bearing Product Overview & Core Advantages
The 71816 ACD/P4TGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As part of the Universal Matchable (SU) series, it is engineered to accommodate combined loads—significant radial loads and axial loads in one direction—with high operational stability. Its P4 tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery. The extra light preload (Class A) minimizes deflection and heat generation, contributing to its outstanding performance in high-rotation environments.
71816 ACD/P4TGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71816 | Basic bearing series and size designation (80mm bore, 100mm OD, 30mm width) |
| AC | Angular Contact design with a 25° contact angle |
| D | Universal Matchable (SU) bearing, designed for pre-set duplex arrangements |
| P4 | High Precision Tolerance Class for superior running accuracy |
| TGA | Phenolic (textile laminate) cage and pre-lubricated |
71816 ACD/P4TGA Bearing Structural Features & Performance Benefits
Optimized Contact Angle & Rigidity: The 25° contact angle is engineered to efficiently handle combined loads, providing high axial rigidity and stable rotational performance under complex loading conditions.
High-Speed Capability: The lightweight phenolic cage (TGA) reduces centrifugal forces, enabling a high limiting speed of 28,000 rpm. This makes the bearing suitable for very high-speed applications.
Precision & Universal Matchability: Manufactured to P4 tolerance standards, it guarantees minimal runout and vibration. As a Universal Matchable (SU) bearing, it can be universally paired with other SU bearings in various preload configurations (e.g., back-to-back, face-to-face) without selective matching, simplifying installation and inventory.
Durability & Load Capacity: Constructed from chrome steel for both rings and balls, it offers a high dynamic load rating of 6660 lbf and a static load rating of 11475 lbf, ensuring long service life under heavy-duty cycles.
71816 ACD/P4TGA Bearing Typical Application Areas
The 71816 ACD/P4TGA is ideally suited for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- High-Frequency Motors & Spindles: Motors requiring minimal vibration and high rotational accuracy.
- Medical Equipment: Diagnostic scanners and dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and auxiliary power units.
