7003 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7003 CE/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.06 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
20 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
2151 lbf
Radial static load rating
1148 lbf
Limiting speed
121 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 151.45
/ each
In Stock
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7003 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7003 CE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable bearing is designed to accommodate combined loads (radial and axial) simultaneously. Its core advantages stem from a P4A super-precision tolerance class, a ceramic ball construction, and an extra light preload (Class A), making it ideal for high-speed spindles and other precision machinery where high rigidity and minimal rotational error are critical.
7003 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| CE | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| HC | Stands for Hybrid Ceramic construction. |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DGA | Specifies the universal matchable (SU) arrangement and extra light preload (Class A). |
7003 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of steel rings and ceramic balls significantly reduces friction, heat generation, and wear. This extends bearing life and allows for higher limiting speeds (121,000 rpm) compared to all-steel equivalents.
- Precision & Rigidity: Manufactured to P4A tolerance class with an extra light preload, this bearing provides superior running accuracy, minimal deflection, and high system rigidity, which is crucial for machining precision.
- Phenolic Resin Cage: The lightweight and robust phenolic cage ensures stable operation at high speeds and offers excellent performance in lubricated environments.
- Universal Matchability (SU): These bearings are universally matchable in any combination (back-to-back, face-to-face, or tandem) without pre-load loss, offering exceptional flexibility in mounting configurations to optimize machine performance.
7003 CE/HCP4ADGA Bearing Typical Application Areas
This high-performance bearing is ideally suited for:
- High-Speed Machine Tool Spindles (CNC milling, grinding, and jig boring machines)
- Precision Grinding Spindles
- High-Frequency Motors
- Aerospace & Defense Instrumentation
- Medical & Dental Equipment Spindles
