7003 CD/P4ADGC
7000 Series Super Precision Angular Contact Ball Bearings
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7003 CD/P4ADGC Bearing Product Overview & Core Advantages
The 7003 CD/P4ADGC is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in moderate preload (Class C), it delivers optimized performance in high-speed operations while accommodating combined radial and axial loads. Manufactured to P4A tolerance class with a 15° contact angle, this bearing offers superior running accuracy and stability for critical machinery applications.
7003 CD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, universal matchable design | Optimized for combined loads and high-speed operation |
| P4A | High precision tolerance class | Exceptional running accuracy and minimal vibration |
| DGC | Moderate preload (Class C) | Enhanced rigidity and precise shaft positioning |
7003 CD/P4ADGC Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with tight dimensional controls (bore: -0.004mm to 0, OD: -0.004mm to 0) ensuring consistent performance in precision applications.
Optimized Load Capacity: The 15° contact angle and 12 chrome steel balls provide excellent combined load capacity (dynamic: 2498 lbf, static: 1474 lbf) while maintaining high-speed capability.
High-Speed Performance: The phenolic cage and optimized internal geometry enable limiting speeds of 121,000 rpm, making it ideal for high-speed spindle applications.
Thermal Stability: Operating temperature range of -30°C to 110°C ensures reliable performance across various environmental conditions.
7003 CD/P4ADGC 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 Systems: Guidance systems and instrumentation
- Robotics: Precision joints and positioning mechanisms