7002 CE/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7002 CE/HCP4ADGB
Basic Information
System of measurement
Metric
Weight
0.05 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
15 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1609 lbf
Radial static load rating
855 lbf
Limiting speed
140 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
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 CE/HCP4ADGB Bearing Product Overview & Core Advantages
The 7002 CE/HCP4ADGB is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional speed and accuracy. Engineered as a universally matchable (SU) bearing in a set of two, it delivers superior performance under combined radial and axial loads. Its construction with a ceramic ball and phenolic cage enables extremely high limiting speeds and stable operation across a wide temperature range. This bearing is the ideal solution for high-speed spindles and precision machinery where rigidity and minimal thermal expansion are critical.
7002 CE/HCP4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| CE | Hybrid Ceramic Balls | Reduced weight, lower friction, higher speed capability, and non-conductive properties. |
| HC | Hybrid Ceramic | Reinforces the use of ceramic rolling elements for enhanced performance. |
| P4A | High Precision Tolerance Class (ABEC 7 / ISO P4) | Guarantees extremely tight dimensional and running accuracy for superior system performance. |
| DGB | Universal Matchable (SU) Arrangement, Light Preload (Class B) | Bearings are supplied as a pre-matched pair (DUplex) ready for X, O, or T arrangements, providing immediate high rigidity and simplified installation. |
7002 CE/HCP4ADGB Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, enabling a limiting speed of 140,000 rpm. This design also offers electrical insulation and superior performance in high-temperature environments.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures excellent dimensional stability and low friction at high speeds, contributing to the bearing's exceptional high-speed performance.
- 15° Contact Angle & Universal Matchability: The optimized contact angle provides an excellent balance between radial and axial load capacity. The universal matchable (SU) design allows for versatile mounting configurations (DB, DF, DT) to achieve the required system stiffness and handle combined loads.
- Super-Precision P4A Tolerance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications demanding the highest levels of rotational accuracy.
- Pre-lubricated: Comes with factory-applied lubrication suitable for the specified temperature range, ensuring immediate operation and long service life.
7002 CE/HCP4ADGB Bearing Typical Application Areas
The 7002 CE/HCP4ADGB is engineered for the most demanding high-precision and high-speed applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and spindle drives requiring high accuracy and rigidity.
- Dental and Medical Handpieces: Where extreme speeds and reliability are mandatory.
- High-Frequency Motors and Spindles: Used in PCB drilling, semiconductor manufacturing, and other precision engineering fields.
- Aerospace Instrumentation: Gyroscopes and other navigation systems.
