71900 CE/P4ADBB
71900 Series Super Precision Angular Contact Ball Bearings
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71900 CE/P4ADBB Bearing Product Overview & Core Advantages
The 71900 CE/P4ADBB is a precision angular contact ball bearing designed for high-speed applications requiring exceptional rotational accuracy. As part of a duplex back-to-back (DB) matched set, this bearing delivers superior rigidity and can accommodate combined loads (radial and axial) simultaneously. Manufactured to P4A tolerance class with light preload (Class B), it ensures optimal performance in demanding precision machinery.
71900 CE/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71900 | Ultra-light series, 10mm bore diameter |
| CE | Enhanced internal design for high-speed operation |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DBB | Duplex Back-to-Back arrangement for maximum rigidity |
71900 CE/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity Design: The duplex back-to-back configuration creates a wide effective spread between load centers, significantly enhancing system stiffness and moment load capacity.
Optimized Speed Performance: Featuring a phenolic resin cage and 15° contact angle, this bearing achieves exceptional limiting speeds up to 185,000 rpm while maintaining dimensional stability.
Precision Engineering: Manufactured to P4A tolerance standards with light preload, ensuring minimal runout and consistent performance in high-precision applications.
Superior Load Capacity: The optimized bearing dimensions and 11 chrome steel balls provide excellent dynamic load rating (731 lbf) for its compact size.
71900 CE/P4ADBB Bearing Typical Application Areas
- High-speed machine tool spindles and precision grinding applications
- Medical and dental equipment requiring quiet, vibration-free operation
- Aerospace instrumentation and navigation systems
- Semiconductor manufacturing equipment and precision robotics
- High-frequency spindle motors and precision measuring instruments
