71913 ACD/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71913 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 71913 ACD/P4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. As a universally matchable (SU) bearing supplied in a pre-lubricated, Extra light preload (Class A) configuration, it is engineered to accommodate combined loads—simultaneously handling radial and axial forces. Its P4A tolerance class ensures superior running accuracy, making it ideal for high-speed spindles and precision machinery where minimal runout and high reliability are critical.
71913 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71913 | Basic bearing series with 65mm bore, 90mm OD |
| AC | 25° contact angle optimized for axial load capacity |
| D | Universal Matchable (SU) design for paired mounting |
| P4A | High precision tolerance class (exceeds ABEC 7) |
| DGA | Preloaded pair with specific axial clearance control |
71913 ACD/P4ADGA Bearing Structural Features & Performance Benefits
Optimized Contact Design: The 25° contact angle provides superior axial load capacity while maintaining excellent radial performance, enabling reliable operation under combined loading conditions.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore: -0.004mm to 0, OD: -0.004mm to 0) ensuring minimal vibration and precise rotational accuracy for high-speed applications.
Advanced Cage Technology: The phenolic cage offers excellent strength-to-weight ratio, reducing centrifugal forces and enabling operation at limiting speeds up to 36,000 rpm with minimal friction.
Universal Matching Capability: As Universal Matchable (SU) bearings, they can be mounted in various configurations (back-to-back, face-to-face, or tandem) to optimize stiffness and load distribution in precision bearing arrangements.
71913 ACD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and grinding spindles requiring precision rotation
- Precision Robotics: Joint and transmission systems demanding high rigidity and accuracy
- Medical Equipment: CT scanners and dental drill motors where reliability and smooth operation are critical
- Aerospace Systems: Guidance mechanisms and auxiliary power units requiring high-speed performance
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
