71922 ACB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71922 ACB/P4A
Basic Information
System of measurement
Metric
Weight
0.9 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
37
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
5558 lbf
Radial static load rating
5738 lbf
Limiting speed
15 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1537.07
/ each
In Stock
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71922 ACB/P4A Bearing Product Overview & Core Advantages
The 71922 ACB/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance under combined loads. Its design is optimized to support significant axial loads in one direction simultaneously with radial loads, making it ideal for high-speed spindles and precision machinery. Manufactured to a P4 (ABEC-7) tolerance class, it guarantees exceptional running accuracy and rotational stability. The bearing comes pre-lubricated and is characterized by its compact cross-section, offering a high load capacity relative to its size.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71922 | Basic bearing series and size designation (110mm bore, 150mm OD, 20mm width). |
| ACB | Specific internal design featuring a 25° contact angle and optimized internal geometry for high rigidity and speed. |
| P4A | Indicates a P4 (ABEC-7) tolerance class with specific running accuracy requirements for the shaft and housing seats. |
71922 ACB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 25° contact angle provides high resistance to deflection under load, ensuring precise shaft positioning and minimal runout, which is critical for machine tool spindles.
- Superior Load Capacity: Engineered to handle combined radial and axial loads efficiently. With a dynamic load rating of 5558 lbf and a static load rating of 5738 lbf, it offers reliable performance in demanding applications.
- Optimized High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, reduces friction, and contributes to a high limiting speed of 15,000 rpm. The open design facilitates efficient lubrication management.
- Pre-Lubricated and Ready-to-Use: Supplied with high-performance grease suitable for a wide operating temperature range from -30°C to 110°C, ensuring immediate startup and initial operational reliability.
71922 ACB/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles (milling, grinding, and lathe centers)
- High-Speed Motors and Spindles
- Precision Gearboxes
- Pumps and Compressors
- Aerospace and Defense Actuation Systems
