71830 ACDGA/HCP4
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
71830 ACDGA/HCP4 Bearing Product Overview & Core Advantages
The 71830 ACDGA/HCP4 is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Positioned in the P4 tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its defining characteristic is the 25° contact angle, optimized to support significant combined loads—handling both radial and substantial one-directional axial loads simultaneously. The use of ceramic balls and a phenolic cage contributes to its high-speed capability, low friction, and extended service life, making it an ideal choice for demanding, precision-driven machinery.
71830 ACDGA/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71830 | Basic bearing designation, indicating a metric series with a 150 mm bore. |
| AC | Angular Contact design with a 25° contact angle. |
| D | High ball complement design for increased load capacity. |
| GA | Specifies an Extra light (Class A) preload for high rigidity and precise shaft positioning. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4 | Denotes a high-precision tolerance class for applications requiring minimal runout and vibration. |
71830 ACDGA/HCP4 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The GA (Class A) preload eliminates internal clearance, ensuring maximum shaft rigidity and precise rotational accuracy, which is critical for machine tool spindles and other high-precision equipment.
- Superior Load Capacity: The 25° contact angle and high ball complement (D) design enable the bearing to efficiently handle combined radial and axial loads.
- Enhanced High-Speed Performance: The combination of ceramic balls and a lightweight phenolic cage reduces centrifugal forces, lowers operating temperatures, and allows for a higher limiting speed of 11,000 rpm.
- Universal Matching Capability (SU): This bearing is universally matchable, allowing two bearings to be mounted in a back-to-back (DB), face-to-face (DF), or tandem (DT) arrangement without selective assembly, simplifying installation and optimizing system performance.
- Open Design with Lubrication: The open seal type facilitates optimal lubrication flow for heat dissipation, suitable for applications where the bearing is integrated into a centralized lubrication system.
71830 ACDGA/HCP4 Bearing Typical Application Areas
The 71830 ACDGA/HCP4 is designed for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Grinding Spindles: Where extreme accuracy and minimal runout are required.
- High-Frequency Motors and Spindles: Benefiting from the hybrid ceramic components for reduced electrical erosion.
- Aerospace and Defense Systems: Including gyroscopes, navigation systems, and auxiliary power units.
- Medical and Laboratory Equipment: Such as high-speed centrifuges and dental handpieces.
