7003 CEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7003 CEGA/HCP4A
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
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:
$ 75.72
/ each
In Stock
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7003 CEGA/HCP4A Bearing Product Overview & Core Advantages
The 7003 CEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features a single row design with a 15° contact angle, optimized for high-speed operation and superior rigidity. Its P4A tolerance class ensures ultra-precise running accuracy, making it ideal for high-reliability and high-precision machinery. The use of ceramic balls and a phenolic cage contributes to lower friction, higher limiting speeds, and extended service life.
7003 CEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CE | Indicates a universally matchable bearing designed for specific preload when mounted with a second bearing. |
| GA | Specifies the preload level, in this case, Extra Light (Class A). |
| HC | Denotes the use of hybrid ceramic balls (silicon nitride). |
| P4A | Specifies the tolerance class, representing very high precision for both bore and outside diameter. |
7003 CEGA/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4A tolerance class and extra light preload (Class A) provide exceptional running accuracy and stiffness, minimizing deflection under load for superior positional control.
- Enhanced Speed and Durability: The combination of hybrid ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces and friction, enabling a high limiting speed of 115,000 rpm. This also results in lower operating temperatures and longer service life.
- Superior Load Capacity: The 15° contact angle is optimized to handle significant combined radial and axial loads efficiently.
- Universal Matchability: The CE suffix indicates the bearing is universally matchable (SU), allowing two bearings to be paired in a set to achieve a defined preload without selective mounting, simplifying installation and ensuring consistent performance.
7003 CEGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace and Defense Instrumentation
- Semiconductor Manufacturing Equipment
