71801 ACD/P4DGB
71800 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71801 ACD/P4DGB Bearing Product Overview & Core Advantages
The 71801 ACD/P4DGB is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. Engineered to a P4 tolerance class, it offers superior dimensional stability and running accuracy. Its key advantage lies in its ability to accommodate combined loads (radial and axial) simultaneously, making it ideal for high-speed spindles and precision machinery. The universal matchable (SU) design allows for flexible mounting configurations in pairs to achieve optimal preload and rigidity.
71801 ACD/P4DGB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for high axial load capacity. |
| P4 | Indicates a high-precision tolerance class for superior running accuracy and minimal vibration. |
| DGB | Signifies a Light preload (Class B) and Universal Matchable (SU) pairing capability for simplified assembly and consistent performance. |
71801 ACD/P4DGB Bearing Structural Features & Performance Benefits
High Precision & Rigidity: Manufactured to P4 tolerance standards with a phenolic resin cage, this bearing ensures minimal runout and excellent dimensional stability under high-speed operation. The 25° contact angle provides a robust design for handling significant axial loads.
Optimized for High-Speed Applications: The lightweight phenolic cage and precision-ground chrome steel components contribute to a high limiting speed of 100,000 rpm, making it suitable for demanding spindle applications.
Universal Matching Capability (SU): As a universal matchable bearing, it can be paired in any combination (back-to-back, face-to-face, or tandem) without selective assembly, simplifying inventory and installation while ensuring optimal preload and system rigidity.
Superior Material & Lubrication: Constructed from high-grade chrome steel for both rings and balls, it offers excellent wear resistance and durability. The bearing comes pre-lubricated for immediate use within a wide temperature range of -30°C to 110°C.
71801 ACD/P4DGB Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instrumentation: Measuring devices, optical encoders.
- High-Speed Motors: Electric spindles, servo motors.
- Medical Equipment: Dental handpieces, laboratory centrifuges.
- Aerospace Components: Gyroscopes, navigation systems.
