S71916 ACE/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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S71916 ACE/P4ADGA Bearing Product Overview & Core Advantages
The S71916 ACE/P4ADGA is a precision double-row angular contact ball bearing engineered for applications demanding exceptional accuracy and reliability. Designed to simultaneously handle combined radial and axial loads from both directions, this bearing features a compact design that saves space in high-performance assemblies. Its extra light preload (Class A) and P4A super-precision tolerance ensure smooth, quiet operation with minimal runout, making it ideal for high-speed spindles and other precision machinery where rotational accuracy is paramount.
S71916 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel (Note: Specification indicates Chrome Steel) |
| 719 | High-Precision Angular Contact Bearing Series |
| 16 | Bore Diameter Code (80 mm) |
| ACE | 25° Contact Angle, Enhanced Internal Design |
| P4A | Super Precision Tolerance Class (Exceeds ABEC 7) |
| DGA | Sealed on Both Sides, Grease Lubricated |
S71916 ACE/P4ADGA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The double-row angular contact design provides superior stiffness and enables the bearing to support significant combined loads (radial and bidirectional axial loads). With a 25° contact angle, it offers optimized axial load carrying capacity.
High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and enabling a high limiting speed of 28,000 rpm. This makes it suitable for demanding high-speed applications.
Precision & Longevity: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, this bearing ensures minimal vibration and high running accuracy. The integrated seals and factory-applied grease lubrication provide long-term, maintenance-free operation within a temperature range of -30°C to 110°C.
Universal Matching (SU): This bearing is universally matchable, allowing two bearings to be paired in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement without the need for selective mounting, simplifying installation and ensuring optimal preload and performance.
S71916 ACE/P4ADGA Bearing Typical Application Areas
The S71916 ACE/P4ADGA is ideally suited for high-precision, high-speed machinery across various industries, including:
- Machine Tool Spindles (CNC machining centers, grinding spindles)
- Precision Robotics and Automation Equipment
- High-Frequency Motors and Spindle Drives
- Medical Equipment (e.g., Dental handpieces, Centrifuges)
- Aerospace & Defense Instrumentation and Control Systems
