71914 ACD/P4ADFB
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
71914 ACD/P4ADFB Bearing Product Overview & Core Advantages
The 71914 ACD/P4ADFB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high rigidity. This metric bearing features a Face-to-Face (DF) matched arrangement with a Light (Class B) preload, ensuring optimal performance under combined radial and axial loads. Manufactured to P4A tolerance class, it delivers superior running accuracy, making it ideal for high-speed, high-precision machinery where reliability and dimensional stability are critical.
71914 ACD/P4ADFB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing designation (70mm bore, 100mm OD, 32mm width) |
| AC | Angular Contact design with 25° contact angle |
| D | Duplex arrangement (two bearings matched) |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DF | Face-to-Face mounting arrangement |
| B | Light preload classification |
71914 ACD/P4ADFB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex face-to-face configuration provides exceptional stiffness and stability, enabling the bearing to handle significant combined loads (radial and axial) in both directions. The 25° contact angle optimizes axial load carrying capacity while maintaining excellent radial performance.
Precision Performance: Manufactured to P4A tolerance standards with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for precise rotational applications.
High-Speed Capability: The phenolic cage and optimized internal geometry allow for limiting speeds up to 28,000 rpm, making it suitable for high-speed spindle applications.
Enhanced Durability: Constructed from chrome steel for both rings and balls, the bearing offers excellent wear resistance and fatigue life. The open design facilitates custom lubrication schemes for specific operating conditions.
71914 ACD/P4ADFB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers
- High-Speed Machining Centers: CNC equipment requiring exceptional accuracy
- Precision Instrumentation: Measuring devices and optical equipment
- Robotic Systems: High-accuracy robotic arms and positioning systems
- Medical Equipment: Dental handpieces and surgical tools
- Aerospace Components: Guidance systems and precision actuators
