71926 CD/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
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71926 CD/HCP4A Bearing Product Overview & Core Advantages
The 71926 CD/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Manufactured to P4 (ABEC-7) tolerance class, this bearing is designed to support high combined loads (radial and axial) primarily in one direction. Its ceramic ball construction and phenolic cage enable superior high-speed performance and reduced operational friction. The bearing is preloaded and pre-lubricated, making it ready for immediate installation in demanding, precision-driven systems.
71926 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71926 | Standard bearing series designation, indicating the bearing size and internal geometry. |
| C | Specifies a 15° contact angle, optimized for high-speed operation. |
| D | Indicates the bearing is manufactured with enhanced dimensional and running accuracy. |
| HC | Signifies the use of Hybrid Ceramic balls (ceramic balls with steel rings). |
| P4 | Denotes the P4 tolerance class (ABEC-7), ensuring ultra-precise dimensions and minimal runout. |
| A | Indicates that the bearing is supplied with a specific preload for immediate high-rigidity performance. |
71926 CD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends bearing life, especially at high speeds.
Phenolic Resin Cage: The lightweight and robust phenolic cage provides excellent dimensional stability and guidance for the ceramic balls, contributing to smooth operation and a high limiting speed of 13,000 rpm.
Precision & Preload: Manufactured to P4 precision class and supplied with a preload, this bearing delivers superior running accuracy and high rigidity, minimizing deflection under load for enhanced system performance.
Optimized Load Capacity: With a 15° contact angle, the 71926 CD/HCP4A is engineered to handle significant combined loads, offering a high dynamic load rating of 20,768 lbf and a static load rating of 24,300 lbf.
71926 CD/HCP4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications where speed, accuracy, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- High-Frequency Motors & Spindles: Used in PCB drilling and precision machining spindles.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
- Medical Equipment: High-speed dental handpieces and laboratory centrifuges.
- Robotics: Precision joints and arms requiring high rigidity and minimal backlash.
