S71911 FE/HCP4AQGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71911 FE/HCP4AQGA Bearing Product Overview & Core Advantages
The S71911 FE/HCP4AQGA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. As a universally matchable (SU) bearing supplied in a pre-matched set of four, it enables simplified installation and optimal performance in complex arrangements. Its ceramic ball construction and P4A super-precision tolerance deliver superior high-speed capability and minimal vibration. The bearing excels at handling combined loads with its 18° contact angle, providing robust support for both radial and axial forces simultaneously.
S71911 FE/HCP4AQGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| FE | Sealed bearing | Provides contamination protection and lubricant retention |
| HC | Hybrid ceramic balls | Enhanced speed capability, reduced friction, and longer service life |
| P4A | Super precision tolerance class | Exceptional running accuracy and minimal vibration |
| QGA | Extra light preload (Class A) | Optimized for high-speed applications with minimal friction |
S71911 FE/HCP4AQGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of ceramic balls with chrome steel rings significantly reduces centrifugal forces, enabling higher limiting speeds (34,000 rpm) while providing excellent wear resistance and electrical insulation properties.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore: -0.004mm to 0, OD: -0.004mm to 0), ensuring exceptional running accuracy and system stability in precision applications.
Optimized Load Capacity: With a radial dynamic load rating of 9068 lbf and static rating of 9338 lbf, the bearing delivers reliable performance under combined loading conditions, supported by its 18° contact angle design.
Advanced Cage Design: The phenolic cage provides excellent strength-to-weight ratio and smooth operation at high speeds, contributing to the bearing's exceptional high-speed performance.
Sealed & Lubricated: Factory-sealed and pre-lubricated with grease, offering protection against contamination and maintaining optimal performance across the operating temperature range of -30°C to 110°C.
S71911 FE/HCP4AQGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Industrial spindle motors and high-frequency applications
- Precision Instrumentation: Medical equipment, measuring devices, and optical systems
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
