71916 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 71916 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered with ceramic balls and manufactured to P4A super precision tolerance, this bearing delivers superior performance in high-speed operations while maintaining dimensional stability under varying thermal conditions. Its 15° contact angle provides optimal load distribution, making it capable of handling combined radial and axial loads simultaneously. The universal matching capability (SU designation) allows for precise preload configuration when used in matched sets.
71916 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| 71916 | Basic bearing designation (80mm bore, 110mm OD) | Standard dimension reference |
| CDGA | Contact angle 15°, Universal matchable, Extra light preload | Optimized for high-speed applications with minimal friction |
| HCP4A | Hybrid ceramic balls, P4A super precision tolerance | Enhanced speed capability and thermal stability |
Structural Features and Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds (28,000 rpm) while providing excellent resistance to thermal expansion and electrical insulation properties.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration levels for precision applications.
Advanced Cage Design: The phenolic resin cage offers superior strength-to-weight ratio, excellent dimensional stability, and reduced friction characteristics, contributing to the bearing's high-speed capability and smooth operation.
Universal Matching Capability: Designed as Universal Matchable (SU) bearings, they can be supplied in pre-matched sets of 3 bearings with controlled preload, simplifying installation and ensuring optimal performance in multi-bearing arrangements.
71916 CDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and grinding spindles requiring precision and thermal stability
- Precision Medical Equipment: Dental handpieces and surgical tools demanding high rotational accuracy
- Aerospace Systems: Guidance systems and instrumentation requiring reliable high-speed operation
- Semiconductor Manufacturing: Wafer processing equipment and cleanroom applications
- High-Frequency Motors: Spindle motors and servo drives in industrial automation
