71904 CE/HCPA9ADGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71904 CE/HCPA9ADGA Bearing Product Overview & Core Advantages
The 71904 CE/HCPA9ADGA is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This ceramic hybrid bearing features silicon nitride ceramic balls and a phenolic resin cage, enabling superior high-speed capabilities and extended service life. With its extra light preload (Class A) and PA9A tolerance class, this bearing delivers exceptional running accuracy and minimal vibration, making it ideal for high-precision machinery and high-rigidity applications.
71904 CE/HCPA9ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CE | Hybrid Ceramic Balls | Enhanced speed capability, reduced friction, and longer service life |
| HC | Phenolic Resin Cage | Excellent high-speed performance and reduced weight |
| PA9A | High Precision Tolerance Class | Superior running accuracy and minimal vibration |
| DGA | Universal Matchable (SU) | Flexible mounting arrangements in pairs or sets |
71904 CE/HCPA9ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride ceramic balls provides superior performance in high-speed applications, with reduced heat generation and extended lubrication intervals.
High-Speed Capability: The phenolic resin cage and ceramic balls work together to achieve exceptional limiting speeds of up to 100,000 rpm, making this bearing ideal for demanding spindle applications.
Precision Engineering: Manufactured to PA9A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring consistent high-precision performance and reliable operation.
Universal Matching Capability: Designed as Universal Matchable (SU) bearings, they can be mounted in various configurations (back-to-back, face-to-face, or tandem) to handle combined loads effectively.
71904 CE/HCPA9ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding machines
- Industrial Pumps & Compressors: High-speed centrifugal pumps and compressor systems
- Precision Instruments: Medical equipment, laboratory instruments, and measuring devices
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units
- Robotics & Automation: High-precision robotic joints and automated manufacturing equipment
