7003 ACD/P4ADGB
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 ACD/P4ADGB Bearing Product Overview & Core Advantages
The 7003 ACD/P4ADGB is a high-precision angular contact ball bearing designed for applications requiring exceptional accuracy and performance. Engineered with a 25° contact angle and P4A tolerance class, this bearing excels at handling combined radial and axial loads simultaneously. Its Universal Matchable (SU) design allows for flexible mounting in preloaded pairs, delivering superior rigidity and rotational accuracy. The phenolic cage and optimized internal geometry contribute to its outstanding high-speed capabilities, making it an ideal solution for demanding precision machinery.
7003 ACD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with 25° contact angle |
| P4A | High precision tolerance class exceeding ABEC 7 standards |
| DGB | Universal Matchable (SU) bearing pair with Light preload (Class B) |
7003 ACD/P4ADGB Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (bore diameter tolerance: -0.004mm to 0), ensuring minimal runout and vibration for precision applications.
Optimized Load Capacity: The 25° contact angle enables efficient handling of both radial loads (2385 lbf dynamic) and axial loads, while the Universal Matchable design allows for paired mounting to increase system rigidity and load distribution.
Superior High-Speed Performance: The phenolic cage provides excellent strength-to-weight ratio and smooth operation at limiting speeds up to 115,000 rpm, reducing friction and heat generation.
Precision Material Selection: Chrome steel rings and balls combined with factory lubrication ensure reliable operation across a wide temperature range (-30°C to 110°C) with minimal maintenance requirements.
7003 ACD/P4ADGB Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and optical devices
- High-Speed Automation - Robotics and pick-and-place systems
- Medical Equipment - Dental handpieces and laboratory instruments
- Aerospace Systems - Guidance mechanisms and control surfaces
