71916 ACE/P4ATGA
71900 Series Super Precision Angular Contact Ball Bearings
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71916 ACE/P4ATGA Bearing Product Overview & Core Advantages
The 71916 ACE/P4ATGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing offers superior dimensional and running accuracy. Its 25° contact angle and Universal Matchable (SU) design make it ideal for handling combined loads, efficiently supporting both radial and axial forces. The extra light preload (Class A) minimizes deflection under light loads, ensuring smooth operation and enhanced rigidity in high-precision spindles and other critical machinery.
71916 ACE/P4ATGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Standard bearing series designation with 80mm bore, 110mm OD, and 48mm width. |
| ACE | Indicates a 25° contact angle and specific internal design optimized for high-speed operation. |
| P4A | Denotes high precision tolerance class with enhanced running accuracy for demanding applications. |
| TGA | Specifies the phenolic resin cage material, contributing to low weight, high strength, and suitability for high-speed operation. |
71916 ACE/P4ATGA Bearing Structural Features & Performance Benefits
High-Speed Capability: The combination of a phenolic resin cage and optimized internal geometry enables a limiting speed of 17,000 rpm, making it an excellent choice for high-speed spindle applications.
Superior Rigidity and Load Capacity: The angular contact design with a 25° contact angle provides high rigidity and the ability to withstand significant combined radial and axial loads (Dynamic: 10,530 lbf, Static: 11,475 lbf).
Precision Performance: Manufactured to P4A tolerance standards with tight dimensional tolerances on the bore, outside diameter, and width, ensuring predictable performance and precise shaft positioning.
Universal Matching: The Universal Matchable (SU) feature allows bearings to be mounted in pairs or sets (typically 3 bearings) in a back-to-back, face-to-face, or tandem arrangement to accommodate complex load conditions.
71916 ACE/P4ATGA Bearing Typical Application Areas
The 71916 ACE/P4ATGA is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and laboratory equipment.
- High-Frequency Motors: Spindles for PCB drilling and routing.
- Robotics: High-accuracy joints and rotary actuators.
