7003 CE/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7003 CE/P4ADBB Bearing Product Overview & Core Advantages
The 7003 CE/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high rigidity. This back-to-back (DB) matched pair is preloaded to Light / Class B specifications, ensuring minimal axial and radial play for superior system stability. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously with high precision, making it an ideal choice for high-speed spindles and other demanding machinery.
7003 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| C | 15° contact angle |
| E | Optimized internal design for enhanced load capacity |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DB | Duplex Back-to-Back mounting arrangement |
| B | Light preload level |
7003 CE/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads. With a 15° contact angle, it provides excellent capability for handling combined radial and axial loads.
Precision Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, critical for high-precision applications. The phenolic cage contributes to smooth operation at high speeds.
High-Speed Capability: The optimized internal geometry and phenolic cage enable operation at limiting speeds up to 115,000 rpm, making it suitable for high-speed spindle applications.
Material Excellence: Constructed from chrome steel for both rings and balls, ensuring durability and long service life under demanding conditions.
7003 CE/P4ADBB Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- High-Speed Motors - Precision electric motors and servo drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and instrumentation
- Precision Robotics - Joint actuators and positioning systems
