7016 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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7016 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7016 CD/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features a universal matchable (SU) design, allowing two bearings to be paired for optimal performance in a back-to-back (DB) or face-to-face (DF) arrangement. Its P4A tolerance class ensures ultra-precision operation, while the ceramic balls and phenolic cage contribute to superior high-speed capabilities and reduced weight. This configuration delivers high rigidity and is pre-lubricated for immediate use, making it ideal for high-reliability, precision machinery.
7016 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| 7016 | Basic series number, indicating a metric bearing with an 80 mm bore diameter and 125 mm outside diameter. |
| CD | Specifies a 15° contact angle and indicates this is one bearing from a universally matchable pair (SU). |
| HC | Indicates the use of Hybrid Ceramic balls, offering advantages in high-speed operation, reduced weight, and extended service life. |
| P4A | Denotes an ultra-precision tolerance class (superior to ABEC 7 / ISO P4), ensuring extremely tight dimensional and running accuracy. |
| DGA | Signifies an Extra Light preload (Class A). This preload eliminates internal clearance, enhancing rigidity and positioning accuracy for precise applications. |
7016 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of steel rings and ceramic balls (Si3N4) significantly reduces centrifugal forces, enabling higher limiting speeds (28,000 rpm). This hybrid design also offers improved resistance to wear and operates effectively in marginal lubrication conditions.
Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability and low friction at high speeds, contributing to smooth operation and reduced heat generation.
Universal Matchable Design (SU): This bearing is manufactured to universal matching standards, allowing any two bearings to be mounted together as a pre-adjusted set in DB or DF arrangements. This simplifies installation and ensures consistent, high rigidity and moment load capacity.
High-Precision & Preload: The P4A tolerance and extra light preload (DGA) work in tandem to provide exceptional running accuracy, minimal vibration, and superior positional stability, which is critical for applications like machine tool spindles.
7016 CD/HCP4ADGA Bearing Typical Application Areas
The 7016 CD/HCP4ADGA is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors and Spindles: For PCB drilling and semiconductor manufacturing equipment.
- Aerospace & Defense Systems: Gyroscopes, radar platforms, and other precision instrumentation.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
