71800 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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71800 ACD/P4DGB Bearing Product Overview & Core Advantages
The 71800 ACD/P4DGB is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a universal matchable (SU) bearing supplied in pre-lubricated pairs, it delivers superior performance in handling combined radial and axial loads. Manufactured to P4 tolerance class with a 25° contact angle and light preload, this bearing is engineered for high-speed operation and long-term reliability in precision machinery.
71800 ACD/P4DGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71800 | Basic bearing series with 10mm bore diameter |
| ACD | 25° contact angle design optimized for high-speed applications |
| P4 | High precision tolerance class for exceptional running accuracy |
| DGB | Universal matchable (SU) pairing designation for optimized load distribution |
71800 ACD/P4DGB Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance standards with precise bore and outside diameter tolerances (-0.004mm to 0) ensuring minimal runout and vibration.
Optimized Load Capacity: The 25° contact angle and universal matching capability enable efficient handling of combined radial and axial loads, with dynamic load rating of 655 lbf and static load rating of 418 lbf.
High-Speed Performance: Features phenolic cage material and optimized internal geometry supporting limiting speeds up to 95,000 rpm.
Premium Material Selection: Constructed from chrome steel rings and balls for superior wear resistance and dimensional stability across the operating temperature range of -30°C to 110°C.
71800 ACD/P4DGB Bearing Typical Application Areas
- High-speed machine tool spindles and precision machining centers
- Medical equipment including dental handpieces and surgical tools
- Aerospace instrumentation and guidance systems
- Precision robotics and automation equipment
- Optical positioning systems and measuring instruments
