7002 ACD/HCP4ADFC
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7002 ACD/HCP4ADFC
Basic Information
System of measurement
Metric
Weight
0.054 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
15 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
32 mm
Outside diameter tolerance
-0.004mm to 0
Width
18 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1814 lbf
Radial static load rating
1046 lbf
Lubrication
Lubricated
Matched arrangement
Duplex Face-to-Face (DF)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
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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7002 ACD/HCP4ADFC Bearing Product Overview & Core Advantages
The 7002 ACD/HCP4ADFC is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched pair arrangement (Face-to-Face) is preloaded to provide high rigidity and stable performance under combined radial and axial loads. Featuring a P4A super-precision tolerance class and ceramic balls, it is engineered for high-speed operation and extended service life in demanding environments.
7002 ACD/HCP4ADFC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | Duplex (two bearings supplied as a matched set). |
| HC | Hybrid Ceramic, indicating ceramic balls for reduced friction and higher speed capability. |
| P4A | Super Precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DF | Face-to-Face mounting arrangement for increased moment load stiffness. |
| C | Moderate preload class for optimal rigidity and speed balance. |
7002 ACD/HCP4ADFC Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex face-to-face (DF) arrangement with a moderate preload (Class C) provides exceptional system stiffness, minimizing deflection under complex combined loads.
- Enhanced Speed & Durability: The use of ceramic balls significantly reduces centrifugal forces and friction, enabling higher limiting speeds and reducing heat generation. The lightweight phenolic cage further supports high-speed performance.
- Precision Performance: Manufactured to a P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high positional accuracy.
- Superior Load Capacity: With a 25° contact angle, the bearing is optimized to handle significant axial loads in both directions simultaneously with radial loads.
7002 ACD/HCP4ADFC Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Rotary Tables and Indexing Heads
- High-Frequency Spindles for PCB drilling and routing
- Medical and Dental Handpieces
- Advanced Robotics and Automation Arms
