71916 ACEGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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71916 ACEGA/HCP4AL Bearing Product Overview & Core Advantages
The 71916 ACEGA/HCP4AL is a single-row angular contact ball bearing engineered for ultra-high precision applications. Positioned in the P4A super-precision tolerance class, it delivers exceptional rotational accuracy and dimensional stability. Its core advantage lies in its optimized design for high-speed operation (up to 17,000 rpm) and its ability to accommodate significant combined loads (radial and axial), thanks to a 25° contact angle. The use of ceramic balls and a phenolic resin cage further enhances its performance, reducing friction, weight, and heat generation for superior reliability in demanding environments.
71916 ACEGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series and size designation (80mm bore, 110mm OD, 16mm width). |
| AC | Angular Contact design with a 25° contact angle. |
| EGA | Universal Matchable (SU) bearing set. "E" indicates a standardized preload, and "GA" signifies a specific axial internal clearance and preload level for universal matching. |
| HC | Hybrid Ceramic construction, featuring ceramic balls and steel rings. |
| P4A | Super Precision tolerance class, exceeding ABEC 7/ISO P4 standards for exceptional running accuracy. |
| L | Light preload designation. |
71916 ACEGA/HCP4AL Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, friction, and operating temperature. This directly contributes to the high limiting speed and extended service life, especially in high-speed applications.
Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high speeds, ensuring smooth operation and guiding the ceramic balls with high precision.
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 superior system accuracy.
Universal Matching (SU): As part of a universally matchable set, multiple bearings can be mounted together in any combination (face-to-face, back-to-back, or tandem) without a performance penalty, simplifying installation and providing design flexibility for complex arrangements.
71916 ACEGA/HCP4AL Bearing Typical Application Areas
The 71916 ACEGA/HCP4AL is ideally suited for high-performance machinery requiring extreme precision and speed:
- High-Frequency Machine Tool Spindles for milling, grinding, and drilling.
- Precision Robotic Drives and Actuators.
- High-Speed Motors and Turbomachinery.
- Medical and Dental Equipment Spindles.
- Aerospace Instrumentation and Guidance Systems.
