7003 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7003 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The 7003 CE/HCP4ADBA represents a premium class of duplex angular contact ball bearings designed for applications demanding exceptional precision and performance. This metric series bearing features a back-to-back (DB) arrangement and is manufactured to P4A super precision tolerance, ensuring minimal runout and superior rotational accuracy. Its core advantages include the ability to handle combined loads (radial and axial) simultaneously, outstanding high-speed capability facilitated by a phenolic cage and ceramic balls, and high operational rigidity due to its matched duplex configuration. This bearing is pre-lubricated and comes with an open seal design, making it ideal for high-reliability, precision machinery.
7003 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7003 | Basic bearing series and size designation (17mm bore, 35mm OD, 20mm width). |
| CE | Indicates a 15° contact angle, optimized for high-speed applications requiring high rigidity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which reduce friction, heat generation, and wear, enabling higher speeds and longer service life. |
| P4A | Denotes a super precision tolerance class with enhanced dimensional and running accuracy, suitable for the most demanding precision applications. |
| DB | Specifies a Duplex Back-to-Back matched arrangement. This configuration provides high moment rigidity and can accommodate axial loads in both directions. |
| A | Indicates an Extra Light preload is applied to the matched set. This minimizes deflection and ensures precise shaft positioning under light loads. |
7003 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends bearing life, especially in high-speed environments.
Duplex Back-to-Back (DB) Design: This arrangement creates a wide, rigid support base, dramatically increasing the bearing's resistance to moment loads and improving overall system stability.
Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high rotational speeds, contributing directly to the high limiting speed of 121,000 rpm.
Super Precision P4A Tolerance: Manufactured to the tightest dimensional and running accuracy standards, this bearing ensures smooth, quiet operation with minimal vibration, which is critical for precision spindles.
Optimized Load Capacity: The 15° contact angle and duplex design provide a balanced capability to handle significant combined radial and axial loads.
7003 CE/HCP4ADBA Bearing Typical Application Areas
The 7003 CE/HCP4ADBA is engineered for the most demanding high-speed and high-precision applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy positioning systems.
- High-Frequency Spindles: PCB drilling and routing machines.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and navigation instruments.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
