71922 ACE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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71922 ACE/HCP4ADT Bearing Product Overview & Core Advantages
The 71922 ACE/HCP4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) matched set is preloaded and manufactured to P4A tolerance class, ensuring ultra-high running accuracy and system rigidity. Its core advantages include the ability to handle high combined loads (radial and axial), superior high-speed capability facilitated by a phenolic cage and ceramic balls, and immediate operational readiness due to factory lubrication. This configuration is ideal for machine tool spindles and other high-precision rotary systems.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71922 | Basic bearing series and size designation (110mm bore, 150mm OD, 40mm width). |
| ACE | 25° contact angle, designed for high axial load capacity. |
| HC | Hybrid Ceramic: Features ceramic balls for reduced friction, higher speed, and longer service life. |
| P4A | The bearing's dimensional and running accuracy meets the ultra-precise P4A tolerance class. |
| DT | Duplex Tandem: Two bearings are matched and mounted in a tandem arrangement to primarily increase axial load capacity in one direction. |
71922 ACE/HCP4ADT Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The duplex tandem arrangement and 25° contact angle create an exceptionally rigid bearing system capable of supporting high combined radial and axial loads. This configuration is optimized for applications where maximum axial stiffness is required.
Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls (Hybrid Ceramic) significantly reduces centrifugal forces, allowing for a high limiting speed of 10,000 rpm. This makes it an ideal high-speed bearing solution.
Precision and Longevity: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration. The ceramic balls are electrically resistant and have a lower coefficient of thermal expansion than steel, contributing to consistent performance and extended service life under varying operational conditions.
Ready-to-Install: The bearing is supplied lubricated and preloaded, simplifying the installation process and ensuring immediate, optimal performance.
71922 ACE/HCP4ADT Bearing Typical Application Areas
The 71922 ACE/HCP4ADT is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Rotary Systems: High-frequency spindles and robotics.
- Aerospace and Defense: Gyroscopes, radar systems, and auxiliary power units.
- Medical Equipment: High-speed dental handpieces and imaging devices.
