71800 CDGA/HCP4
Hybrid Ceramic Super Precision Bearings
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71800 CDGA/HCP4 Bearing Product Overview & Core Advantages
The 71800 CDGA/HCP4 is a single-row angular contact ball bearing designed for ultra-high precision applications requiring exceptional rotational accuracy and speed capability. As a P4 tolerance class bearing with ceramic balls and extra light preload (Class A), it delivers superior performance in demanding environments. Its universal matchable (SU) design allows for flexible mounting arrangements, while the phenolic cage enables high-speed operation up to 95,000 rpm. This bearing is engineered to handle combined radial and axial loads simultaneously with minimal friction and heat generation.
71800 CDGA/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 71800 | Basic bearing series with 10mm bore diameter | Compact design for space-constrained applications |
| CDGA | 15° contact angle with extra light preload (Class A) | Optimized for high-speed operation with minimal friction |
| HCP4 | Hybrid ceramic balls with P4 precision tolerance | Enhanced speed capability, reduced heat generation, and extended service life |
71800 CDGA/HCP4 Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds while maintaining dimensional stability across the operating temperature range (-30°C to 110°C).
Precision Ground Components: Manufactured to P4 tolerance class with tight dimensional controls (bore diameter tolerance: -0.004mm to 0), ensuring consistent performance and minimal runout in precision applications.
Phenolic Cage Design: The phenolic resin cage provides excellent strength-to-weight ratio, reduced friction, and superior performance at high rotational speeds compared to metal cages.
Optimized Contact Geometry: The 15° contact angle and extra light preload configuration deliver optimal balance between axial load capacity and high-speed capability, making it ideal for applications requiring rapid acceleration and deceleration.
71800 CDGA/HCP4 Bearing Typical Application Areas
- High-Speed Spindles: CNC machining centers, PCB drilling machines, and precision grinding spindles
- Medical Equipment: Dental handpieces, surgical tools, and laboratory centrifuges
- Aerospace Systems: Gyroscopes, navigation instruments, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages, and inspection equipment
- Test & Measurement: High-speed encoders, precision rotary tables, and metrology instruments
