71800 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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71800 CD/HCP4 Bearing Product Overview & Core Advantages
The 71800 CD/HCP4 is a single-row angular contact ball bearing engineered for ultra-precision applications requiring exceptional rotational accuracy and high-speed performance. Featuring a 15° contact angle and P4 (ABEC-7) tolerance class, this bearing is optimized to handle significant axial loads in one direction while accommodating combined radial and axial loads. Its compact design with a 10 mm bore and 5 mm width makes it ideal for space-constrained, high-precision assemblies. The combination of ceramic balls and a phenolic cage contributes to reduced friction, lower operating temperatures, and superior high-speed capability.
71800 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71800 | Basic bearing series designation for ultra-light, miniature angular contact bearings |
| CD | Indicates a 15° contact angle and optimized internal geometry for high-precision applications |
| HC | Hybrid Ceramic construction, featuring ceramic balls and steel rings |
| P4 | Precision tolerance class equivalent to ABEC-7, ensuring exceptional running accuracy |
71800 CD/HCP4 Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls provides significant performance advantages including reduced friction, electrical insulation, and the ability to operate at higher speeds with less heat generation compared to all-steel bearings.
High-Speed Phenolic Cage: The phenolic resin cage offers excellent dimensional stability at high rotational speeds, contributing to the bearing's impressive limiting speed of 150,000 rpm. This lightweight cage material reduces centrifugal forces and ensures smooth operation under demanding conditions.
Precision Engineering: Manufactured to P4 tolerance class with optimized internal geometry, this bearing delivers exceptional running accuracy, minimal vibration, and consistent performance in precision applications.
Preload Availability: The bearing is designed to accommodate preload, enabling enhanced system rigidity, reduced deflection under load, and improved positional accuracy in high-precision applications.
71800 CD/HCP4 Bearing Typical Application Areas
- High-Speed Spindles: Machine tool spindles, PCB drilling spindles, and dental handpieces requiring exceptional precision and speed
- Precision Instruments: Optical encoders, measuring instruments, and laboratory equipment where accuracy is critical
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units benefiting from hybrid ceramic construction
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages requiring clean, reliable operation
- Medical Devices: Surgical tools and diagnostic equipment where reliability and precision are essential
