71922 ACE/P4ADGA
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71922 ACE/P4ADGA
Basic Information
System of measurement
Metric
Weight
1.66 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
40 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
26
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
14040 lbf
Radial static load rating
14738 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
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
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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71922 ACE/P4ADGA Bearing Product Overview & Core Advantages
The 71922 ACE/P4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. Engineered to a P4A tolerance class, it delivers superior running precision. Its universal matchable (SU) design allows for flexible mounting in various preload configurations, while the extra light preload (Class A) ensures smooth, low-torque operation ideal for high-speed performance. This bearing is capable of supporting combined loads, making it a compact and reliable solution for high-accuracy machinery.
71922 ACE/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 71922 ACE/P4ADGA provides detailed technical specifications:
- 71922: Basic designation indicating a metric, angular contact ball bearing with a 110mm bore, 150mm OD, and 40mm width.
- ACE: Internal design code, typically referring to a 25° contact angle and specific internal geometry optimized for high-speed operation.
- P4A: Denotes an ultra-precision tolerance class with enhanced dimensional and running accuracy beyond standard P4, ensuring minimal vibration and superior performance.
- DGA: Indicates the bearing is supplied lubricated and is part of a universally matchable (SU) set of two bearings.
71922 ACE/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The angular contact design with a 25° contact angle provides excellent resistance to combined radial and axial loads, ensuring stable operation under demanding conditions.
- Superior High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 10,000 rpm. The optimized internal geometry further enhances high-speed capability.
- Ultra-Precision Operation: Manufactured to P4A tolerance standards, this bearing guarantees exceptional dimensional stability and running accuracy, which is critical for applications like machine tool spindles.
- Universal Matching Capability (SU): This feature allows two bearings to be mounted in either a back-to-back or face-to-face arrangement, providing flexibility in achieving the desired preload and system rigidity.
- Durable Material Construction: Manufactured from chrome steel for both rings and balls, the bearing offers high wear resistance and long service life.
71922 ACE/P4ADGA Bearing Typical Application Areas
The 71922 ACE/P4ADGA is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Aerospace Control Systems
- Medical and Dental Equipment
- High-Performance Pumps and Compressors
