7003 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7003 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.03 kg
Tolerance class
P4 (ABEC-7)
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
-0.006mm 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° 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
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
Price:
$ 85.1
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7003 CE/HCP4A Bearing Product Overview & Core Advantages
The 7003 CE/HCP4A is a high-precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. Its single-row design with a 15° contact angle is optimized to support combined loads, handling significant radial loads alongside thrust loads in one direction. Manufactured to the stringent P4 (ABEC-7) tolerance class, this bearing ensures minimal runout and vibration. A key performance advantage is its ceramic ball material (Silicon Nitride), which reduces centrifugal forces, lowers operating temperatures, and enables superior high-speed capabilities, making it an ideal choice for demanding, high-RPM machinery.
7003 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning | Advantage |
|---|---|---|
| C | 15° Contact Angle | Optimized for high-speed operation and combined load capacity. |
| E | Optimized Internal Design | Enhanced load rating and speed performance. |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Reduced weight, lower friction, higher stiffness, and extended service life, especially at high speeds. |
| P4A | P4 Tolerance Class (ABEC-7) | Guarantees ultra-precise dimensions and running accuracy for applications requiring minimal vibration and error. |
7003 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal loading, lowers friction, and provides electrical insulation. This results in higher limiting speeds, reduced operating temperature, and longer bearing service life.
- Phenolic Resin Cage: The lightweight and robust phenolic cage material offers excellent dimensional stability and low friction at high rotational speeds, contributing to the bearing's overall high-speed performance.
- Precision P4 Tolerances: With tight tolerances on the bore diameter, outside diameter, and width, this bearing ensures precise shaft positioning and smooth, quiet operation, which is critical for high-precision spindles.
- High-Speed & High-Rigidity: The 15° contact angle and optimized internal geometry provide excellent rigidity, making the bearing capable of handling combined loads effectively while maintaining stability at the limiting speed of 115,000 rpm.
7003 CE/HCP4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications where speed, accuracy, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and drilling spindles.
- Precision Robotics: Arm joints and high-accuracy rotary actuators.
- High-Frequency Motors and Spindles: PCB drilling spindles and dental handpieces.
- Aerospace & Defense: Gyroscopes, navigation systems, and auxiliary power units (APUs).
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
