71922 ACDGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71922 ACDGA/HCP4AL
Basic Information
System of measurement
Metric
Weight
0.73 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.004mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
28
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13162 lbf
Radial static load rating
15300 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
3
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71922 ACDGA/HCP4AL Bearing Product Overview & Core Advantages
The 71922 ACDGA/HCP4AL is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (simultaneous radial and axial loads), this bearing features a single-row design with a 25° contact angle, optimized for high rigidity and precise operation. Its P4A tolerance class ensures superior dimensional and running accuracy, making it ideal for high-speed spindles and precision machinery. The use of ceramic balls and a phenolic cage contributes to reduced friction, lower operating temperatures, and enhanced high-speed capability, delivering reliable performance in critical applications.
71922 ACDGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71922 | Basic bearing series and size designation (110mm bore, 150mm OD, 20mm width). |
| AC | Angular Contact design, optimized for combined loads. |
| D | High ball complement design for increased load capacity. |
| GA | Universal Matchable (SU) bearing in a set of 3, pre-set for specific preload/clearance. |
| HC | Hybrid Ceramic construction (steel rings with ceramic balls). |
| P4A | High precision tolerance class (superior to ABEC 7), ensuring extreme running accuracy. |
71922 ACDGA/HCP4AL Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust construction provide excellent resistance to combined loads, ensuring stable performance under demanding conditions. The high ball complement (28 balls) further enhances radial dynamic load rating (13,162 lbf) and radial static load rating (15,300 lbf).
- Superior High-Speed Performance: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage minimizes friction and heat generation, enabling a high limiting speed of 10,000 rpm. This makes the bearing ideal for high-speed applications.
- Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore and OD tolerance: -0.004mm to 0), this bearing guarantees exceptional running accuracy and minimal vibration, crucial for precision machinery.
- Optimized for Matched Sets: Designed as a Universal Matchable (SU) bearing, it can be supplied in a set of three, pre-configured to achieve specific preload (Extra light / Class A in this case) for optimal system stiffness and performance without additional adjustment.
71922 ACDGA/HCP4AL Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Robotics: Joints and arm assemblies where accuracy, high speed, and reliability are critical.
- High-Speed Motors & Spindles: Electric motors, CNC spindles, and other rotary systems operating at very high RPM.
- Aerospace & Defense Systems: Gyroscopes, navigation systems, and other instrumentation demanding the highest levels of accuracy and performance.
- Medical Equipment: High-speed dental handpieces, imaging scanner gantries, and surgical robotics.
