S71911 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S71911 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The S71911 CE/HCP4ADBA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex back-to-back (DB) matched set offers superior rigidity and can accommodate combined radial and axial loads. Manufactured to P4A tolerance class and featuring a phenolic cage with ceramic balls, it is engineered for high-speed operation and long-term reliability in precision machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S71911 | Basic bearing designation (19mm bore, 28mm OD, 6mm width series) |
| C | 15° contact angle |
| E | Optimized internal design |
| HC | Hybrid ceramic balls |
| P4A | High precision tolerance class |
| DB | Duplex Back-to-Back arrangement |
| A | Extra light preload |
S71911 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The duplex back-to-back arrangement creates a rigid bearing system capable of withstanding combined radial and axial loads from both directions, making it ideal for applications requiring high stiffness and precise shaft positioning.
Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls (Hybrid) reduces centrifugal forces, enabling higher limiting speeds (34,000 rpm) and lower operating temperatures compared to all-steel bearings.
Precision & Longevity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The standard grease lubrication and sealed design provide maintenance-free operation within a wide temperature range of -30°C to 110°C.
S71911 CE/HCP4ADBA Bearing Typical Application Areas
This high-precision duplex bearing set is specifically designed for advanced applications including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Robotics (Articulated arm joints, high-accuracy positioning systems)
- Aerospace Systems (Gyroscopes, navigation instruments, auxiliary power units)
- Medical Equipment (Dental handpieces, laboratory centrifuges, imaging systems)
- High-Frequency Motors and Turbocharger Systems
