7016 ACE/HCP4AH1DBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7016 ACE/HCP4AH1DBA
Basic Information
System of measurement
Metric
Weight
1.54 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
80 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
125 mm
Outside diameter tolerance
-0.004mm to 0
Width
44 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
11.112 mm
Ball quantity
25
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
11858 lbf
Radial static load rating
11925 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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Product Overview and Core Advantages
The 7016 ACE/HCP4AH1DBA is a high-precision duplex angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined loads (radial and axial loads acting simultaneously). Manufactured to P4A tolerance class and featuring a phenolic cage with ceramic balls, this bearing is engineered for high-speed operation and offers a high degree of running accuracy, making it ideal for high-reliability, precision machinery.
7016 ACE/HCP4AH1DBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACE | 25° contact angle, Standard internal clearance | Optimized for axial load capacity and high-speed performance. |
| HC | Hybrid Ceramic (Silicon Nitride balls with steel rings) | Reduced friction, lower operating temperature, and extended service life, especially at high speeds. |
| P4A | High-Precision Tolerance Class (superior to ABEC 7) | Ensures minimal runout and vibration for exceptional rotational accuracy. |
| H1 | Preload: Extra Light (Class A) | Minimizes axial and radial play, enhancing system rigidity without excessive heat generation. |
| DB | Duplex Back-to-Back Matched Arrangement | Provides rigid support for moment loads and increases overall system stability. |
Structural Features and Performance Benefits
- High Rigidity and Stability: The back-to-back (DB) duplex arrangement creates a wide effective spread, significantly increasing the bearing's resistance to moment loads and tilting, resulting in superior system stiffness.
- Enhanced Load Capacity: The 25° contact angle is optimized to handle significant combined radial and axial loads simultaneously, making it suitable for complex loading conditions.
- Superior High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density, hard ceramic (Si3N4) balls reduces centrifugal forces, lowers friction, and allows for a high limiting speed of 28,000 rpm.
- Precision and Longevity: Manufactured to P4A tolerance class, this bearing ensures minimal vibration and high running accuracy. The hybrid ceramic design offers excellent wear resistance and a longer operational life, particularly in high-speed and potentially under-lubricated conditions.
7016 ACE/HCP4AH1DBA Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance applications where accuracy, speed, and rigidity are critical. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Robotics: High-accuracy robotic arms and joints requiring minimal deflection.
- Aerospace and Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
- High-Frequency Motors and Spindles: Electric motors and motorized spindles for PCB drilling and other high-RPM applications.
