71910 CE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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71910 CE/HCP4ADBA Bearing Product Overview & Core Advantages
The 71910 CE/HCP4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. This duplex back-to-back (DB) matched set is preloaded to Extra Light (Class A) specifications, delivering superior rotational accuracy and system rigidity. Its construction, featuring a phenolic cage and ceramic balls, is optimized for high-speed operation up to 46,000 rpm. This bearing is engineered to handle combined loads efficiently, making it an ideal solution for high-precision, high-reliability machinery.
71910 CE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing designation indicating a high-precision angular contact bearing series with 50mm bore, 72mm OD, and 24mm width. |
| CE | Contact angle of 15°, optimized for high-speed applications with moderate axial load capacity. |
| HC | Hybrid Ceramic construction with ceramic balls and steel rings for enhanced performance. |
| P4A | High precision tolerance class ensuring exceptional dimensional and running accuracy. |
| DB | Duplex Back-to-Back arrangement providing high moment stiffness and precise shaft positioning. |
| A | Extra Light preload class for minimal friction and optimal high-speed performance. |
71910 CE/HCP4ADBA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride ceramic balls provides superior performance characteristics including reduced friction, higher speed capability, and extended service life compared to all-steel bearings.
Enhanced Rigidity: The duplex back-to-back arrangement creates a rigid bearing system capable of withstanding moment loads and maintaining precise shaft alignment under combined radial and axial loads.
High-Speed Capability: The phenolic resin cage offers excellent strength-to-weight ratio and smooth operation at limiting speeds up to 46,000 rpm, while the 15° contact angle optimizes performance for high-speed applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control on bore diameter, outside diameter, and width, ensuring consistent performance in precision applications.
Superior Load Capacity: With a dynamic load rating of 4680 lbf and static load rating of 3825 lbf, this bearing delivers reliable performance under demanding operating conditions.
71910 CE/HCP4ADBA Bearing Typical Application Areas
The 71910 CE/HCP4ADBA is specifically designed for high-performance applications including:
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications
- High-Speed Motors: Electric motor spindles requiring exceptional rotational accuracy
- Precision Instrumentation: Medical equipment, measuring devices, and laboratory instruments
- Aerospace Components: Guidance systems, actuators, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling equipment and precision positioning systems
