71801 ACD/P4DFBVT162F2
71800 Series Super Precision Angular Contact Ball Bearings
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71801 ACD/P4DFBVT162F2 Bearing Product Overview & Core Advantages
The 71801 ACD/P4DFBVT162F2 is a precision duplex angular contact ball bearing designed for high-performance applications. This metric bearing features a Face-to-Face (DF) matched arrangement, providing exceptional system rigidity and stability. Its primary advantage lies in its ability to handle combined loads—significant radial and axial loads in both directions—simultaneously. Manufactured to P4 tolerance class with a Light (Class B) preload, it delivers high running accuracy, making it ideal for high-speed spindles and other precision machinery requiring minimal deflection and superior rotational performance.
71801 ACD/P4DFBVT162F2 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71801 | Basic bearing series and size designation. |
| AC | Angular Contact design. |
| D | Duplex bearing (two single bearings supplied as a set). |
| P4 | High precision tolerance class for superior running accuracy. |
| DF | Face-to-Face mounting arrangement. |
| B | Light preload (Class B). |
| VT162 | Lubrication code, indicating a specific high-performance grease fill. |
| F2 | Flanged outer ring design. |
71801 ACD/P4DFBVT162F2 Bearing Structural Features & Performance Benefits
High Rigidity and Stability: The duplex face-to-face (DF) arrangement creates a highly rigid bearing system that effectively resists moment loads, ensuring precise shaft positioning and minimal operational deflection.
Superior Load Capacity: With a 25° contact angle and a matched set of two bearings, this unit is engineered to handle significant combined radial and axial loads from both directions, a critical requirement for complex loading conditions.
Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the P4 precision and optimized internal geometry contribute to smooth operation and a high limiting speed of 100,000 rpm, making it an excellent high-speed bearing.
Pre-Configured for Performance: Supplied as a pre-matched and pre-lubricated set with light preload, this bearing is ready for installation, simplifying assembly and ensuring immediate, consistent performance without the need for on-site adjustment.
71801 ACD/P4DFBVT162F2 Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for applications demanding high rigidity, speed, and accuracy. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- Medical Equipment: Dental handpieces, high-speed centrifuges.
- Aerospace Actuators: Flight control systems and auxiliary power units.
- High-Frequency Motors and Spindles: Where minimal runout and high rotational stability are paramount.
