7003 ACD/P4AH
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/P4AH Bearing Product Overview & Core Advantages
The 7003 ACD/P4AH is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. This P4A tolerance class bearing features a phenolic cage and comes preloaded, enabling it to handle combined radial and axial loads simultaneously while maintaining precise shaft positioning. Its compact design and superior material composition make it ideal for high-speed machinery where minimal deflection and thermal stability are critical performance requirements.
7003 ACD/P4AH Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACD | 25° Contact Angle, Optimized for Duplex Arrangements | Enhanced axial load capacity and rigidity in matched sets |
| P4A | High Precision Tolerance Class (ISO P4A) | Superior running accuracy and reduced vibration levels |
| H | Stabilized Heat Treatment | Dimensional stability at high operating temperatures |
7003 ACD/P4AH Bearing Structural Features & Performance Benefits
High Rigidity Design: The 25° contact angle and preloaded configuration provide exceptional system stiffness, minimizing axial and radial deflection under operational loads.
Superior Load Capacity: Engineered to handle combined loads effectively, with a dynamic load rating of 1462 lbf and static load rating of 698 lbf, ensuring reliable performance in demanding applications.
High-Speed Capability: The phenolic cage and optimized internal geometry enable limiting speeds up to 70,000 rpm, making it suitable for high-rotation applications.
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional controls (bore tolerance: -0.004mm to 0), ensuring consistent performance and interchangeability.
7003 ACD/P4AH Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and optical devices
- High-Speed Motors - Servo motors and spindle drives
- Medical Equipment - Dental handpieces and laboratory instruments
- Aerospace Components - Guidance systems and actuator mechanisms
