S71922 ACD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71922 ACD/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
1.48 kg
Tolerance class
P4A
Seal type
Sealed
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
40 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
21510 lbf
Radial static load rating
30825 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
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
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S71922 ACD/HCP4ADGA Bearing Product Overview & Core Advantages
The S71922 ACD/HCP4ADGA is a high-precision double row angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and reliability. Its design excels at simultaneously handling combined loads (radial and bidirectional axial loads), offering a compact, space-saving solution. Manufactured to the stringent P4A tolerance class, it delivers superior running accuracy and rotational stability. The combination of a ceramic ball material and a phenolic cage contributes to its high-speed capability and long service life, making it ideal for high-performance machinery.
S71922 ACD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Contact Angle of 25° and Universal Matchable (SU) design, allowing two bearings to be mounted in any combination (face-to-face, back-to-back, or tandem) to achieve the desired rigidity and load capacity. |
| HC | Hybrid Ceramic construction, featuring ceramic balls for reduced friction, higher speed potential, and longer life. |
| P4A | Indicates a super-precision tolerance class with specific running accuracy requirements beyond standard P4, ensuring ultra-smooth and precise operation. |
| DGA | Sealed on both sides and pre-lubricated with grease, offering protection from contamination and providing maintenance-free operation. |
S71922 ACD/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial rigidity, enabling the bearing to effectively support heavy combined loads from multiple directions. The 25° contact angle is optimized for sustaining significant axial loads.
- High-Speed Performance: The lightweight phenolic cage and low-friction ceramic balls significantly reduce centrifugal forces and operating temperatures, allowing for a high limiting speed of 10,000 rpm.
- Exceptional Precision: Manufactured to P4A super-precision standards with tight dimensional tolerances on the bore diameter, outside diameter, and width, ensuring minimal runout and vibration for ultra-precise applications.
- Maintenance-Free Operation: The integral seals and factory-applied grease lubrication protect against contaminants and provide long-term, reliable performance without the need for re-lubrication within the specified temperature range.
S71922 ACD/HCP4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Gearboxes
- High-Frequency Motors
- Medical and Laboratory Equipment
- Aerospace Actuation Systems
