7016 ACE/HCP4AH1DT
Hybrid Ceramic Super Precision Bearings
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Ball & Washer Dimensions
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7016 ACE/HCP4AH1DT Bearing Product Overview & Core Advantages
The 7016 ACE/HCP4AH1DT is a high-precision duplex tandem angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This matched bearing set features a P4A tolerance class and is preloaded, delivering superior rotational accuracy and system rigidity. Its configuration is optimized to handle primarily axial loads in one direction, making it ideal for high-speed spindles and precision machinery where uncompromising stability and minimal runout are critical.
Model Code Breakdown
| 7016 | Basic bearing series, with 80 mm bore diameter, 125 mm outside diameter, and 44 mm width. |
| ACE | Specific internal design featuring a 25° contact angle and optimized internal geometry. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls, which reduce friction, heat generation, and wear, enabling higher speeds and longer service life. |
| P4A | Indicates a high-precision tolerance class with very tight dimensional and running accuracy limits, superior to ABEC 7. |
| H1 | Preload code: Specifies a light preload for enhanced stiffness and precise shaft positioning. |
| DT | Duplex Tandem: Denotes a matched set of two bearings arranged in tandem to increase axial load carrying capacity in a single direction. |
7016 ACE/HCP4AH1DT Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces and friction, allowing for a limiting speed of 28,000 rpm. This construction also provides superior resistance to wear and operates effectively within a wide temperature range of -30°C to 110°C.
High Rigidity & Load Capacity: The duplex tandem (DT) arrangement and built-in preload create an exceptionally stiff bearing system capable of handling high axial loads. The 25° contact angle is optimized for a strong axial load capacity while maintaining good radial load performance.
Precision & Stability: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy. The phenolic resin cage is lightweight and robust, contributing to smooth operation at high speeds.
Pre-Lubrication: The bearing comes lubricated from the factory, ready for immediate installation and initial operation, simplifying the assembly process.
7016 ACE/HCP4AH1DT Bearing Typical Application Areas
This high-precision, high-speed bearing is engineered for the most demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation equipment.
- High-Frequency Motors and Spindles: Where maximum speed and minimal vibration are paramount.
