S71916 CD/HCP4AQBCC
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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Materials
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S71916 CD/HCP4AQBCC Bearing Product Overview & Core Advantages
The S71916 CD/HCP4AQBCC is a high-precision quadruplex matched bearing set engineered for demanding applications requiring exceptional rigidity and rotational accuracy. This metric angular contact ball bearing configuration features a back-to-back (QBC) arrangement of four bearings, providing superior stability under combined loads (radial and bidirectional axial loads). Manufactured to ABEC 7 / P4A tolerance class with a 15° contact angle and ceramic balls, it delivers outstanding high-speed performance, thermal stability, and extended service life in precision machinery.
Model Code Deep Explanation
| Code Segment | Technical Meaning |
|---|---|
| S71916 | Precision angular contact ball bearing series with 80mm bore, 110mm OD, 16mm width per bearing |
| CD | 15° contact angle designation |
| HC | Hybrid ceramic balls (silicon nitride) |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| QBCC | Quadruplex back-to-back matched set with moderate preload (Class C) |
S71916 CD/HCP4AQBCC Bearing Structural Features & Performance Benefits
Exceptional Rigidity & Load Capacity: The quadruplex back-to-back arrangement creates an extremely rigid bearing system capable of handling heavy combined radial and axial loads from multiple directions. This configuration provides optimal moment load resistance and shaft positioning accuracy.
High-Speed Capability: The combination of ceramic balls (lower density, reduced centrifugal forces) and phenolic resin cage enables operation at limiting speeds up to 28,000 rpm. The hybrid construction reduces friction and heat generation at high rotational velocities.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), this bearing set ensures minimal runout and vibration for applications requiring superior rotational accuracy.
Pre-lubricated & Sealed: Factory-filled with high-performance grease suitable for the specified temperature range (-30°C to 110°C), providing immediate operation without additional lubrication. The sealed design protects against contamination.
S71916 CD/HCP4AQBCC Bearing Typical Application Areas
- High-speed machine tool spindles for milling, grinding, and turning applications
- Precision robotics and automation equipment requiring high rigidity
- Aerospace components including gyroscopes and navigation systems
- Medical equipment such as dental handpieces and surgical tools
- High-frequency motor spindles and precision positioning systems
- Semiconductor manufacturing equipment requiring ultra-precise motion control
