71916 ACEGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71916 ACEGA/P4A Bearing Product Overview & Core Advantages
The 71916 ACEGA/P4A is a single-row angular contact ball bearing designed for applications demanding ultra-high precision and exceptional rotational accuracy. Positioned in the P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle provides optimized performance for combined loads, effectively handling both radial and axial loads in one direction. The phenolic cage and universal matching capability make it ideal for high-speed spindle arrangements where rigidity and thermal stability are critical.
71916 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 71916 | Standard bearing designation (80mm bore, 110mm OD, 16mm width) | Compact design with precise bearing dimensions |
| AC | Angular Contact design | Optimized for combined radial and axial loads |
| EGA | Extra Light Preload (Class A) | Minimal friction, ideal for high-speed applications |
| P4A | Super Precision Tolerance Class | Exceptional running accuracy and dimensional stability |
71916 ACEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance in precision applications.
High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio and thermal stability, contributing to the bearing's impressive limiting speed of 28,000 rpm. The cage design minimizes friction and allows for efficient lubrication distribution.
Superior Load Capacity: With a radial dynamic load rating of 4,860 lbf and static load rating of 3,825 lbf, this bearing delivers reliable performance under significant combined loads. The 25° contact angle optimally distributes loads between radial and axial components.
Universal Matching Design: As a Universal Matchable (SU) bearing, the 71916 ACEGA/P4A can be paired with another identical bearing in back-to-back, face-to-face, or tandem arrangements, providing design flexibility for complex spindle configurations.
71916 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling machine spindles requiring exceptional accuracy and high-speed performance
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus demanding ultra-precise rotational characteristics
- High-Speed Motors: Spindle motors, high-frequency motors, and other rotary applications where minimal vibration and precise running are essential
- Aerospace Components: Guidance systems, gyroscopes, and other critical aerospace applications requiring reliable performance under extreme conditions
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems where precision and reliability are paramount
