S71914 CE/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
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S71914 CE/HCP4AQBCA Bearing Product Overview & Core Advantages
The S71914 CE/HCP4AQBCA represents a premium precision quadruplex back-to-back angular contact ball bearing system engineered for the most demanding applications. This matched bearing set is designed to handle combined loads—simultaneous radial and bidirectional axial forces—with exceptional stability. Its P4A super-precision tolerance and ceramic ball construction deliver superior running accuracy, reduced heat generation, and extended service life, making it ideal for high-speed, high-rigidity spindles where uncompromising performance is critical.
S71914 CE/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S71914 | Basic bearing designation; 70mm bore, 100mm OD, 14mm width. |
| CE | Hybrid bearing with ceramic balls and steel rings. |
| HC | Phenolic resin cage, offering lightweight and excellent high-speed performance. |
| P4A | Super-precision tolerance class, exceeding ABEC 7/ISO P4 standards for enhanced running accuracy. |
| QBC | Quadruplex Back-to-Back matched arrangement. Four bearings are pre-matched for optimal preload and stiffness. |
S71914 CE/HCP4AQBCA Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Load Capacity: The quadruplex back-to-back (QBC) configuration creates an extremely rigid bearing system, capable of withstanding heavy combined loads and moments. The 15° contact angle is optimized for high axial load capacity in both directions.
Superior High-Speed Performance: The combination of a lightweight phenolic cage (HC) and low-density ceramic balls (CE) significantly reduces centrifugal forces, enabling a high limiting speed of 28,000 rpm. This hybrid design also minimizes friction and heat buildup.
Pre-optimized for Precision: As a factory-matched set with extra light preload (Class A), this bearing assembly ensures consistent, predictable performance with minimal runout, eliminating the need for complex on-site preload adjustment.
Sealed and Lubricated for Life: The sealed design with factory-applied grease lubrication protects against contamination and is suitable for the specified operating temperature range, offering a maintenance-free solution.
S71914 CE/HCP4AQBCA Bearing Typical Application Areas
This high-performance bearing set is specifically designed for advanced machinery requiring the highest levels of precision, speed, and rigidity. Key applications include:
- High-Frequency CNC Machining Centers and Grinding Spindles
- Precision Tooling Spindles
- High-speed Robotic Drives and Rotary Actuators
- Advanced Aerospace and Defense instrumentation
