S71916 ACD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S71916 ACD/P4ADGA Bearing Product Overview & Core Advantages
The S71916 ACD/P4ADGA is a precision double row angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to simultaneously handle combined radial and bidirectional axial loads, its compact design offers a high-performance solution. Manufactured to the stringent P4A tolerance class and featuring a universal matchable (SU) design, this bearing ensures superior running accuracy and simplified mounting in preloaded arrangements. The combination of a phenolic cage and pre-lubrication makes it an ideal choice for high-speed operation and long service life.
S71916 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71916 | Basic bearing designation, indicating a double row angular contact ball bearing with a 80 mm bore. |
| ACD | Contact angle of 25° and a universal matchable (SU) design. |
| P4A | Indicates a high precision tolerance class for both inner and outer rings, exceeding ABEC 7/ISO P4 standards. |
| DGA | Signifies the bearing is sealed on both sides and pre-lubricated with grease. |
S71916 ACD/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The double row design provides superior radial and axial rigidity, enabling the bearing to effectively support combined loads from any direction. This makes it exceptionally stable under complex loading conditions.
Optimized High-Speed Performance: The lightweight and robust phenolic cage is engineered for high rotational stability, contributing to the bearing's high limiting speed of 28,000 rpm. The 25° contact angle provides an excellent balance between axial load capacity and speed capability.
Maintenance-Free Operation: The integral seals effectively retain grease and exclude contaminants, while the factory-applied lubrication ensures consistent performance over a wide temperature range from -30°C to 110°C, resulting in long service intervals and reduced maintenance.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, this bearing guarantees minimal runout and vibration for ultra-smooth operation in the most demanding applications.
S71916 ACD/P4ADGA Bearing Typical Application Areas
The S71916 ACD/P4ADGA is ideally suited for high-precision and high-speed machinery, including:
- Machine Tool Spindles (e.g., milling, grinding, and turning centers)
- High-Frequency Spindles for PCB drilling and routing
- Precision Robotics and Automation Equipment
- High-Speed Pumps and Compressors
- Medical and Dental Equipment
- Advanced Test and Measurement Instruments
