7003 ACDGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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7003 ACDGB/P4A Bearing Product Overview & Core Advantages
The 7003 ACDGB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 25° contact angle provides optimal performance for combined loads, effectively handling both radial and axial forces in one direction. The phenolic cage and universal matching capability make it ideal for high-speed spindle arrangements and precision machinery where minimal deflection and maximum reliability are critical.
7003 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| AC | Angular Contact Design | Optimized for combined radial and axial loads |
| DGB | Universal Matchable (SU designation) | Enables precise preload control in matched sets |
| P4A | High Precision Tolerance Class | Superior running accuracy and dimensional stability |
7003 ACDGB/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with tight dimensional controls (bore diameter tolerance: -0.004mm to 0) ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 25° contact angle and chrome steel construction provide excellent combined load capacity (radial dynamic load: 1462 lbf, static load: 698 lbf) while maintaining precision under load.
High-Speed Performance: The phenolic resin cage and optimized internal geometry enable limiting speeds up to 70,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching Capability: Designed as Universal Matchable (SU) bearings, they can be precisely matched in sets of three to achieve specific preload requirements for high-rigidity applications.
7003 ACDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision lathes
- Precision Grinding Spindles - Applications requiring ultra-precise rotational accuracy
- High-Speed Motors - Servo motors and spindle drives
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and precision instrumentation
- Robotics - Precision joints and high-accuracy positioning systems
