S71911 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S71911 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The S71911 CE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This P4A tolerance class bearing is characterized by its universal matchable (SU) design, allowing for flexible mounting arrangements in pairs. Its core advantages include the ability to accommodate combined loads (radial and axial) simultaneously, superior high-speed capabilities up to 34,000 rpm, and outstanding operational stability due to its precision-ground components and ceramic ball construction.
S71911 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S | Super Precision Bearing Series | Denotes bearings manufactured to the highest precision standards for critical applications. |
| 71911 | Basic Bearing Designation | Indicates the bearing series and bearing dimensions (55mm bore, 80mm OD, 26mm width). |
| CE | Contact Angle (15°) | Optimized for handling significant axial loads in one direction while supporting radial loads. |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Provides lower density, reduced friction, and superior performance at high speeds. |
| P4A | Tolerance Class (Equivalent to ABEC 7) | Guarantees extremely tight dimensional and running accuracy for precision bearing applications. |
| DGA | Grease Lubrication, Sealed | Factory-filled with high-performance grease and sealed for life, ensuring long-term, maintenance-free operation. |
S71911 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The use of silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces and friction, enabling higher limiting speeds, lower operating temperatures, and extended service life compared to all-steel bearings.
Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and guidance, contributing to smooth operation and high rotational accuracy, even under demanding conditions.
Universal Matchable (SU) Design: This feature allows any two bearings to be mounted together in either a back-to-back (DB) or face-to-face (DF) arrangement without pre-selection, simplifying installation and providing design flexibility for optimal rigidity and moment load capacity.
Sealed & Greased for Life: The integrated seals protect against contamination and retain the high-performance grease, making the bearing a maintenance-free solution suitable for its entire operational temperature range of -30°C to 110°C.
S71911 CE/HCP4ADGA Bearing Typical Application Areas
The S71911 CE/HCP4ADGA is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In articulated arms and high-accuracy positioning systems.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and small tool spindles.
- Aerospace & Defense Systems: In gyroscopes, navigation instruments, and auxiliary power units.
- Medical Equipment: For CT scanners and other diagnostic imaging devices requiring quiet and precise rotation.
