71902 CE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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71902 CE/HCP4ADT Bearing Product Overview & Core Advantages
The 71902 CE/HCP4ADT is a precision angular contact ball bearing designed for high-speed applications requiring exceptional rigidity and accuracy. This metric bearing features a duplex tandem (DT) arrangement with a P4A tolerance class, enabling it to handle significant axial loads in one direction while maintaining superior rotational precision. Its construction with ceramic balls and phenolic cage contributes to reduced friction, lower operating temperatures, and extended service life, making it ideal for demanding industrial environments.
71902 CE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71902 | Basic bearing series and size designation (15mm bore, 28mm OD) |
| CE | Contact angle of 15° |
| HC | Hybrid ceramic balls |
| P4A | High precision tolerance class |
| DT | Duplex Tandem preload arrangement |
71902 CE/HCP4ADT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem arrangement provides exceptional stiffness, allowing the bearing to withstand heavy axial loads while maintaining precise shaft positioning. The 15° contact angle optimizes load distribution for improved performance under combined loading conditions.
Superior High-Speed Performance: With a limiting speed of 230,000 rpm, this bearing excels in high-velocity applications. The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at elevated speeds, while the ceramic balls reduce centrifugal forces and minimize heat generation.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), this bearing ensures minimal runout and vibration for applications requiring exceptional rotational accuracy.
Hybrid Ceramic Advantage: The combination of chrome steel rings with silicon nitride ceramic balls provides superior wear resistance, electrical insulation properties, and extended service life compared to all-steel bearings.
71902 CE/HCP4ADT Bearing Typical Application Areas
- High-speed machining spindles for precision manufacturing
- Dental and medical handpieces requiring sterile operation
- Aerospace components and instrumentation systems
- High-frequency motors and precision robotics
- Laboratory equipment and analytical instruments
- Semiconductor manufacturing equipment
