71910 CDGA/HCP4A
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
71910 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 71910 CDGA/HCP4A is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and exceptional rotational accuracy. Positioned in the P4A super-precision tolerance class, this bearing is designed to handle combined loads (simultaneous radial and axial loads) with superior stability. Its 15° contact angle provides optimal axial load capacity while maintaining high-speed capabilities. Manufactured with ceramic balls and a phenolic resin cage, it offers reduced weight, lower friction, and enhanced performance in demanding environments. The bearing comes pre-lubricated and is universally matchable, allowing for precise preload control when mounted in sets.
71910 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 71910 | Basic bearing series designation | High-precision angular contact bearing series |
| C | 15° contact angle | Optimized for combined radial and axial loads |
| DG | Universal matching bearing | Can be mounted in any combination to achieve required preload |
| A | Extra light preload | Minimal internal clearance for highest precision applications |
| HCP4A | P4A tolerance class with ceramic balls and phenolic cage | Ultra-precision rating with enhanced speed and temperature capabilities |
71910 CDGA/HCP4A Bearing Structural Features & Performance Benefits
Advanced Material Composition: The combination of chrome steel rings with ceramic balls (Si3N4) significantly reduces centrifugal forces, enabling higher limiting speeds (46,000 rpm) while providing excellent wear resistance and electrical insulation properties.
Precision Engineering: Manufactured to P4A super-precision standards with tight dimensional tolerances (bore and OD: -0.004mm to 0), this bearing ensures minimal runout and vibration for applications requiring exceptional rotational accuracy.
Optimized Cage Design: The phenolic resin cage offers excellent strength-to-weight ratio, reduced friction, and superior performance at high speeds compared to metallic cages, contributing to the bearing's high-speed capability.
Universal Matching Capability: As a universally matchable bearing, the 71910 CDGA/HCP4A can be mounted in various preload configurations (back-to-back, face-to-face, or tandem) without selective matching, simplifying installation and maintenance procedures.
71910 CDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- Precision Instrumentation: Measuring equipment, optical scanners, and laboratory instruments
- Aerospace Systems: Gyroscopes, navigation equipment, and aircraft auxiliary systems
- High-Speed Motors: CNC spindle motors, dental handpieces, and turbo-molecular pumps
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages
