71926 ACD/HCP4ADGAGMM
Hybrid Ceramic Super Precision Bearings
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71926 ACD/HCP4ADGAGMM Bearing Product Overview & Core Advantages
The 71926 ACD/HCP4ADGAGMM is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. This universal matchable (SU) bearing is designed to accommodate combined radial and axial loads simultaneously. Its construction with a phenolic cage and ceramic balls enables superior high-speed performance and operational stability. The P4A tolerance class and extra light preload (Class A) ensure minimal runout and vibration, making it ideal for ultra-precise spindle systems.
71926 ACD/HCP4ADGAGMM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71926 | Basic bearing series and size designation |
| ACD | Double row angular contact design with 25° contact angle |
| HC | Hybrid ceramic bearing construction |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DG | Universal matchable bearing (SU designation) |
| AG | Extra light preload (Class A) |
| MM | Pre-greased with high-performance lubricant |
71926 ACD/HCP4ADGAGMM Bearing Structural Features & Performance Benefits
Double Row Design for High Rigidity: The dual raceway configuration provides exceptional stiffness and stability, effectively resisting moment loads and maintaining precision under demanding operating conditions.
Hybrid Ceramic Construction: Featuring ceramic balls and chrome steel rings, this bearing delivers enhanced speed capability, reduced thermal expansion, and extended service life in high-speed applications.
Optimized High-Speed Performance: The phenolic cage offers excellent strength-to-weight ratio and smooth operation at the limiting speed of 11,000 rpm, while the 25° contact angle provides optimal load distribution.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring minimal vibration and superior running accuracy for precision machinery.
Universal Matching Capability: As a Universal Matchable (SU) bearing, it can be paired with another identical bearing in any combination to achieve the required preload and stiffness without selective matching.
71926 ACD/HCP4ADGAGMM Bearing Typical Application Areas
Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications requiring exceptional accuracy and rigidity.
High-Speed Motors: Electric motor spindles, high-frequency spindles, and precision servo motors where ceramic hybrid technology provides performance advantages.
Aerospace Systems: Gyroscopes, navigation instruments, and aerospace positioning systems demanding high precision bearings with reliable performance.
Medical Equipment: Dental handpieces, surgical tools, and medical imaging devices requiring high-speed, precision rotation with minimal vibration.
Robotics and Automation: Precision robotic joints, CNC rotary tables, and automated manufacturing equipment where angular contact ball bearings provide optimal load capacity and accuracy.
