7014 CD/P4ADFA
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7014 CD/P4ADFA Bearing Product Overview & Core Advantages
The 7014 CD/P4ADFA is a duplex face-to-face (DF) matched pair of precision angular contact ball bearings designed for the most demanding applications. This P4A tolerance class set delivers exceptional rotational accuracy and system rigidity. Its primary advantage lies in its ability to handle combined radial and axial loads simultaneously with high precision and stability. The matched DF arrangement provides excellent operational stability and is ideal for applications requiring preload and high rigidity in a compact design.
7014 CD/P4ADFA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Basic bearing series, indicating a 70mm bore, 110mm OD, and 40mm width. |
| C | 15° contact angle, optimized for carrying significant axial loads. |
| D | Indicates a duplex (two-bearing) set. |
| P4A | Specifies a high-precision tolerance class superior to ABEC-7, ensuring minimal runout and vibration. |
| DF | Denotes the Face-to-Face mounting arrangement of the matched pair. |
| A | Specifies an Extra Light preload for minimal friction and high-speed capability. |
7014 CD/P4ADFA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex face-to-face (DF) arrangement creates a highly rigid bearing system capable of withstanding combined loads from multiple directions. The 15° contact angle is engineered to support substantial axial loads in both directions.
High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and enabling a high limiting speed of 22,000 rpm. The bearings are pre-lubricated for immediate operation.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, this set guarantees exceptional running accuracy and low vibration for precision machinery.
Durability: Constructed from chrome steel for both rings and balls, the bearing offers high fatigue life and reliability under dynamic loads (18,720 lbf dynamic load rating).
7014 CD/P4ADFA Bearing Typical Application Areas
This high-precision, preloaded bearing set is ideally suited for applications requiring extreme accuracy and rigidity, such as:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors
- Medical and Laboratory Equipment
- Aerospace Actuation Systems
