7016 ACD/HCP4AQBCA
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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7016 ACD/HCP4AQBCA Bearing Product Overview & Core Advantages
The 7016 ACD/HCP4AQBCA is a high-precision quadruplex angular contact ball bearing designed for the most demanding applications. This metric system bearing features an open seal type and is configured in a Back-to-Back (QBC) matched arrangement of four bearings. Its core advantages include exceptional stiffness and load-carrying capacity, capable of handling combined radial and axial loads simultaneously. Manufactured to a P4A super-precision tolerance class and featuring ceramic balls, it is engineered for high-speed operation up to 28,000 rpm and superior performance in high-rigidity, high-accuracy systems.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7016 | Basic bearing series and size designation (80mm bore, 125mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | Indicates a high-precision bearing. |
| HC | Refers to the phenolic (Hybrid Composite) cage material. |
| P4A | Super-precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| QBC | Quadruplex Back-to-Back matched set arrangement. |
| A | Specifies an Extra Light preload on the matched set. |
7016 ACD/HCP4AQBCA Bearing Structural Features & Performance Benefits
- Unmatched Rigidity and Load Capacity: The Quadruplex Back-to-Back (QBC) arrangement creates an extremely rigid bearing system, ideal for applications where shaft deflection must be minimized. This configuration provides a high moment stiffness and can support significant combined loads.
- High-Speed Capability: The combination of a lightweight phenolic cage (HC) and low-density, high-hardness ceramic balls reduces centrifugal forces and friction, enabling stable operation at the high limiting speed of 28,000 rpm.
- Super-Precision Performance: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, this bearing ensures minimal runout and superior rotational accuracy.
- Optimized for Precision Systems: The 25° contact angle and Extra Light preload (A) are optimized for high-speed, high-precision applications, reducing noise and heat generation while maintaining accuracy.
7016 ACD/HCP4AQBCA Bearing Typical Application Areas
This high-performance bearing is engineered for advanced machinery requiring the utmost precision and speed, including:
- High-Frequency Machine Tool Spindles (e.g., for milling, grinding, and drilling)
- Precision Robotic Drives and Actuators
- Advanced Aerospace and Defense Systems
- High-Speed Centrifuges and Compressors
- Medical and Laboratory Equipment (e.g., CT scanners, high-speed dental handpieces)
