7016 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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7016 ACD/HCP4A Bearing Product Overview & Core Advantages
The 7016 ACD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its 25° contact angle and is supplied with a P4 (ABEC-7) tolerance class, ensuring ultra-precise rotational motion. A key advantage is its preload availability, which eliminates internal clearance to provide superior system rigidity and minimize axial and radial runout. The combination of a phenolic cage and ceramic balls contributes to lower friction, higher limiting speeds, and extended service life, making it an ideal solution for high-speed, high-rigidity spindle systems.
7016 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 7016 | Standard bearing series designation indicating a 80mm bore, 125mm OD, and 22mm width. |
| AC | Angular Contact design, optimized for combined loads. |
| D | Signifies a high contact angle of 25°. |
| HC | Hybrid Ceramic, indicating the balls are made of ceramic material. |
| P4 | Specifies a high-precision tolerance class (equivalent to ABEC-7). |
| A | Indicates the bearing is supplied with a specific preload. |
7016 ACD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with a steel ring significantly reduces centrifugal forces, lowers operating temperature, and provides electrical insulation. This results in higher limiting speeds (18,000 rpm) and longer lubrication life.
- Optimized Contact Angle & Preload: The 25° contact angle is ideal for sustaining substantial axial loads in one direction, as well as combined (radial and axial) loads. The available preload ensures maximum stiffness and positional accuracy by eliminating internal clearance.
- High-Speed Phenolic Cage: The lightweight and robust phenolic cage offers excellent guidance and stability at high rotational speeds, contributing to smooth and quiet operation.
- Precision Engineering: Manufactured to P4 tolerance with tight dimensional control on the bore diameter, outside diameter, and width, guaranteeing consistent, high-performance operation in precision assemblies.
7016 ACD/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving machines, and high-frequency motors.
- Medical Equipment: Dental handpieces and surgical drill spindles.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and navigation instruments.
