71916 CE/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
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71916 CE/HCP4AQBCA Bearing Product Overview & Core Advantages
The 71916 CE/HCP4AQBCA is a precision angular contact ball bearing configured as a Quadruplex Back-to-Back (QBC) matched set. Engineered for the most demanding applications, this bearing offers exceptional high rigidity and operational accuracy, capable of handling complex combined loads. Its ceramic ball construction and P4A tolerance class make it an ideal solution for high-speed, high-precision machinery requiring superior performance and reliability.
71916 CE/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing designation indicating size series and bore diameter |
| CE | Contact angle of 15° |
| HC | Hybrid Ceramic construction (steel rings with ceramic balls) |
| P4A | High precision tolerance class with enhanced running accuracy |
| QBC | Quadruplex Back-to-Back arrangement of four matched bearings |
71916 CE/HCP4AQBCA Bearing Structural Features & Performance Benefits
Enhanced Rigidity & Load Capacity: The Quadruplex Back-to-Back arrangement provides exceptional system stiffness, enabling precise positioning and resistance to moment loads. This configuration significantly increases the bearing's ability to handle combined radial and axial loads from multiple directions.
High-Speed Performance: Featuring ceramic balls (Si3N4) and a phenolic cage, this bearing achieves superior high-speed capabilities with reduced centrifugal forces and excellent thermal stability. The limiting speed of 28,000 rpm makes it suitable for demanding rotational applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for precision applications.
Temperature Performance: The hybrid ceramic construction and phenolic cage enable stable operation across a wide temperature range from -30°C to 110°C.
71916 CE/HCP4AQBCA Bearing Typical Application Areas
- High-Speed Machine Tool Spindles - Providing precision and rigidity for milling, grinding, and turning operations
- Precision Medical Equipment - Dental handpieces and surgical tools requiring high RPM and accuracy
- Aerospace Systems - Turbomachinery, auxiliary power units, and flight control systems
- High-Frequency Spindles - PCB drilling, semiconductor manufacturing, and micro-machining
- Robotics & Automation - Precision joints and high-speed positioning systems
