7016 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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7016 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 7016 CDGA/HCP4A is a single row angular contact ball bearing engineered for ultra-high precision applications. Positioned in the P4A super-precision tolerance class, it delivers exceptional rotational accuracy and dimensional stability. A key advantage is its universal matchable (SU) design, allowing bearings to be mounted in tandem, face-to-face, or back-to-back arrangements to optimize stiffness and load handling. The combination of a ceramic ball material and phenolic cage enables superior high-speed performance and reduced operational friction. This bearing is pre-lubricated and designed to handle combined loads with a consistent 15° contact angle, making it ideal for machine tool spindles and other demanding, high-rigidity systems.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7016 | Basic bearing series and size designation (80mm bore, 125mm OD, 22mm width). |
| CD | 15° nominal contact angle, optimized for high-speed operation and combined load capacity. |
| GA | Indicates a universally matchable (SU) bearing, supplied in a set of three for precise preload configuration. |
| HCP4A | Defines the tolerance class and internal features. HC signifies a hybrid ceramic ball construction, while P4A denotes a super-precision tolerance level exceeding ABEC 7 standards. |
7016 CDGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls significantly reduces centrifugal forces, lowers friction, and minimizes heat generation. This directly contributes to a higher limiting speed (17,000 rpm) and extended service life, especially in high-velocity applications.
- Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability and low friction at high speeds, ensuring smooth operation and reliable ball guidance.
- Super-Precision P4A Tolerance: Manufactured to the strictest dimensional and running accuracy standards, this bearing ensures minimal vibration and superior positional accuracy for the most demanding spindle systems.
- Universal Matchability (SU): This feature allows for flexible mounting of multiple bearings to create a highly rigid bearing system capable of handling complex combined loads (radial and axial) from any direction.
- Extra Light Preload (Class A): The pre-set internal clearance minimizes deflection under light loads, enhancing system rigidity and rotational accuracy right from startup.
7016 CDGA/HCP4A Bearing Typical Application Areas
The 7016 CDGA/HCP4A is specified for high-performance machinery 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.
- Aerospace & Defense: Gyroscopes, radar systems, and navigation equipment.
- Medical Equipment: High-speed dental handpieces and imaging device rotors.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
