71922 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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71922 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 71922 CD/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to a P4A tolerance class, it delivers superior rotational precision. Its universal matchable (SU) design allows for flexible mounting arrangements in preloaded sets, while the ceramic balls and phenolic cage contribute to high-speed capability, reduced weight, and extended service life. This bearing is pre-lubricated and optimized to handle combined loads efficiently.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71922 | Basic bearing series and size designation (110mm bore, 150mm OD, 40mm width). |
| CD | Contact angle of 15° and universal matchable (SU) design. |
| HC | Hybrid Ceramic construction, featuring ceramic balls. |
| P4A | High precision tolerance class, exceeding ABEC 7/ISO P4 standards. |
| DGA | Designates a matched set of 2 bearings with specific preload (Extra light / Class A). |
71922 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The use of ceramic balls significantly reduces friction, heat generation, and wear, enabling higher limiting speeds (10,000 rpm) and providing electrical insulation. This results in longer service life and improved reliability in high-performance applications.
- High Rigidity and Precision: Manufactured to P4A tolerance standards with a 15° contact angle, this bearing provides exceptional running accuracy and high rigidity, making it ideal for applications where minimal deflection under load is critical.
- Optimized Cage and Lubrication: The lightweight phenolic cage is designed for high-speed stability and reduced centrifugal forces. The bearing is pre-lubricated, ensuring immediate operational readiness and smooth performance across its specified temperature range (-30°C to 110°C).
- Superior Load Capacity: With a dynamic load rating of 22,725 lbf and a static load rating of 32,175 lbf, this bearing is engineered to handle significant combined radial and axial loads.
71922 CD/HCP4ADGA Bearing Typical Application Areas
The 71922 CD/HCP4ADGA is suited for high-speed, high-precision machinery where reliability is paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In robotic arm joints and spindle drives requiring high accuracy and stiffness.
- Aerospace & Defense Systems: In gyroscopes, navigation systems, and auxiliary power units.
- High-Frequency Motors and Spindles: Used in PCB drilling, dental handpieces, and other applications demanding extreme rotational accuracy.
