71906 CE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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71906 CE/P4ADGA Bearing Product Overview & Core Advantages
The 71906 CE/P4ADGA is a super-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing excels in machine tool spindles and other high-precision equipment. Its universal matchable (SU) design allows for flexible mounting in duplex pairs to support combined loads, including significant thrust loads in both directions. The phenolic cage and optimized internal geometry contribute to its high limiting speed of 100,500 rpm, making it an ideal solution for high-rigidity, high-speed applications.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71906 | Super-precision angular contact ball bearing series with 30mm bore, 47mm OD, 18mm width |
| CE | 15° contact angle, optimized for high-speed operation |
| P4A | High-precision tolerance class with enhanced running accuracy |
| DGA | Universal matchable (SU) designation for duplex mounting |
71906 CE/P4ADGA Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for superior rotational accuracy.
Optimized Internal Geometry: Features a 15° contact angle and phenolic cage that enables stable operation at high speeds up to 100,500 rpm while maintaining dimensional stability.
Universal Matching Capability: The SU designation allows bearings to be mounted in back-to-back (DB), face-to-face (DF), or tandem (DT) arrangements without selective matching, providing flexibility in supporting combined radial and axial loads.
Enhanced Load Capacity: With 18 chrome steel balls of 4.762mm diameter, this bearing delivers a dynamic load rating of 2077 lbf and static load rating of 1440 lbf, ensuring reliable performance under demanding conditions.
71906 CE/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- High-Speed Motors: Precision spindles for PCB drilling, dental handpieces, and small motor applications
- Precision Instrumentation: Measuring equipment, optical scanners, and laboratory apparatus
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Robotics: High-precision joints and servo motor applications requiring minimal backlash
