7016 CD/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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7016 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The 7016 CD/HCP4ADBA is a precision duplex angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. This metric system bearing features a back-to-back (DB) matched arrangement, enabling it to withstand combined loads—significant radial loads and axial loads in both directions. Manufactured to a P4A super-precision tolerance class and preloaded to Extra Light (Class A), it delivers high running accuracy, excellent rotational stability, and high rigidity, making it ideal for high-performance, high-reliability spindles and machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7016 | Basic bearing series and size designation (80mm bore, 125mm OD). |
| CD | Indicates a duplex bearing in a Back-to-Back (DB) matched arrangement. |
| HC | Signifies the use of Hybrid Ceramic components (Ceramic balls). |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DB | Reiterates the Back-to-Back mounting configuration. |
| A | Specifies the Extra Light preload (Class A). |
7016 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperatures, and provides electrical insulation, contributing to superior high-speed performance and extended service life.
Duplex Back-to-Back Design: This configuration creates a wide, rigid support system that effectively resists moment loads, providing high rigidity and exceptional operational stability for precise machining and positioning.
Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable ball guidance and low friction, which is crucial for maintaining performance at the limiting speed of 28,000 rpm.
Precision & Preload: The P4A tolerance and controlled Extra Light preload minimize runout and axial/radial play, ensuring high rotational accuracy, reduced vibration, and immediate responsiveness to load changes.
7016 CD/HCP4ADBA Bearing Typical Application Areas
This bearing is engineered for the most demanding applications, including:
- High-Frequency CNC Spindles for milling, grinding, and drilling
- Precision Machine Tool Spindles
- High-speed Robotic Drives and Servo Motors
- Aerospace and Defense instrumentation
- Advanced Medical Equipment spindles
