7003 CE/HCP4AH
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7003 CE/HCP4AH
Basic Information
System of measurement
Metric
Weight
0.03 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
35 mm
Outside diameter tolerance
-0.004mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1316 lbf
Radial static load rating
574 lbf
Limiting speed
115 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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
Price available upon request.
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7003 CE/HCP4AH Bearing Product Overview & Core Advantages
The 7003 CE/HCP4AH is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Designed to accommodate combined loads (simultaneous radial and axial forces), this bearing features a 15° contact angle optimized for high-speed operation. Its P4A tolerance class ensures superior dimensional and running accuracy, while the ceramic ball and phenolic cage construction contribute to reduced friction, lower operating temperatures, and extended service life. This bearing is preloaded and comes lubricated for immediate use, making it an ideal solution for high-rigidity, high-speed spindle systems.
7003 CE/HCP4AH Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CE | High-precision bearing with a 15° contact angle. | Optimized for high-speed operation and moderate axial load capacity. |
| HC | Hybrid Ceramic bearing (Steel rings with ceramic balls). | Reduced weight, lower friction, higher limiting speed, and longer service life. |
| P4A | Tolerance class per ISO standards, stricter than ABEC 7. | Guarantees exceptional running accuracy, low vibration, and precise positioning. |
7003 CE/HCP4AH Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls (Si3N4) significantly reduces centrifugal forces and friction, enabling a high limiting speed of 115,000 rpm. This construction also provides electrical insulation and superior performance in high-temperature or minimally lubricated environments.
- Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high speeds, contributing to smooth operation and reduced heat generation.
- Preload & High Rigidity: The bearing is supplied with a light preload, which eliminates internal clearance and provides high system rigidity. This is critical for applications requiring minimal deflection under load and precise rotational accuracy.
- Precision Ground & Lubricated: Manufactured to P4A tolerance with tight bore, OD, and width tolerances, ensuring perfect fit and performance. The bearing is pre-lubricated for immediate installation and initial operation.
7003 CE/HCP4AH Bearing Typical Application Areas
This high-speed precision bearing is ideally suited for applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and drilling spindles.
- Precision Instrumentation: Medical and laboratory equipment, optical scanners.
- High-Frequency Motors & Spindles: PCB drilling spindles, dental handpieces.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and auxiliary power units.
