7016 CE/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7016 CE/HCP4AQBCA Bearing Product Overview & Core Advantages
The 7016 CE/HCP4AQBCA is a precision quadruplex matched angular contact ball bearing designed for the most demanding high-performance applications. Its core advantage lies in the back-to-back (QBC) arrangement of four bearings, creating an exceptionally rigid system capable of supporting complex combined loads (radial and axial) from multiple directions. Manufactured to an ultra-P4A tolerance class, it delivers superior running accuracy and rotational stability, making it ideal for high-speed spindles and precision machinery.
7016 CE/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7016 | Standard bearing series and size (80mm bore, 125mm OD) | Defines the core bearing dimensions. |
| CE | 15° contact angle | Optimized for high-speed operation and moderate axial load capacity. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Reduces friction, heat generation, and wear; enables higher limiting speeds and longer service life. |
| P4A | Geometric tolerance class (super precision) | Guarantees extreme dimensional and running accuracy for applications requiring minimal vibration and error. |
| QBC | Quadruplex Back-to-Back matched set | Provides maximum system rigidity and moment load capacity. The set is pre-matched for optimal performance. |
7016 CE/HCP4AQBCA Bearing Structural Features & Performance Benefits
Exceptional Rigidity and Load Capacity: The quadruplex back-to-back (QBC) configuration is the key structural feature. This arrangement significantly increases the system's resistance to moment loads and deflection, providing high rigidity critical for maintaining precision under heavy combined loads.
High-Speed & Thermal Performance: The combination of a lightweight phenolic cage and ceramic balls (Hybrid construction) reduces centrifugal forces and friction. This allows the bearing to achieve a high limiting speed of 28,000 rpm while operating at lower temperatures.
Ultra-Precision: The P4A tolerance class and Extra Light (Class A) preload ensure minimal runout and superior rotational accuracy. The open design, while requiring a sealed housing, allows for optimized lubrication flow and heat dissipation.
Material Excellence: The use of chrome steel rings with ceramic balls provides excellent durability and a long operational lifespan, even in demanding high-speed environments.
7016 CE/HCP4AQBCA Bearing Typical Application Areas
- High-Frequency Machine Tool Spindles: For CNC milling, grinding, and turning centers where maximum rigidity and speed are paramount.
- Precision Robotics: In high-accuracy robotic arms and joints requiring minimal deflection under complex loads.
- Aerospace & Defense Systems: In gyroscopes, radar systems, and other instrumentation demanding the highest levels of precision and reliability.
- High-Speed Compressors & Pumps: Where stable operation at extreme rotational speeds is critical.
