71922 CE/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71922 CE/P4A
Basic Information
System of measurement
Metric
Weight
0.83 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
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9068 lbf
Radial static load rating
7762 lbf
Limiting speed
18 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:
$ 1536.92
/ each
In Stock
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71922 CE/P4A Bearing Product Overview & Core Advantages
The 71922 CE/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 (ABEC-7) tolerance class, this bearing is engineered to handle combined loads, efficiently supporting significant radial loads alongside thrust loads in one direction. Its 15° contact angle optimizes it for high-speed operation while maintaining stability. Preloaded and pre-lubricated, it offers immediate, reliable performance in demanding environments, making it an ideal choice for precision spindles and other high-accuracy machinery.
71922 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71922 | Basic bearing series and size designation (110mm bore, 150mm OD, 20mm width). |
| CE | Indicates a 15° contact angle and specific internal design optimized for high-speed operation and high rigidity. |
| P4 | Specifies the tolerance class (P4 / ABEC-7), denoting very high precision in dimensions and running accuracy. |
| A | Signifies that the bearing is supplied with a preload, ensuring minimal axial and radial play for enhanced system stiffness. |
71922 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design, combined with a P4 tolerance class and phenolic cage, ensures exceptional dimensional stability and running accuracy, which is critical for high-speed spindle applications.
- Superior Load Capacity: With a 15° contact angle, this bearing is engineered to handle combined radial and axial loads simultaneously. The dynamic load rating of 9068 lbf and static load rating of 7762 lbf confirm its robust performance.
- Optimized High-Speed Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and reduced friction, enabling a high limiting speed of 18,000 rpm.
- Ready-to-Install and Reliable: The bearing comes pre-lubricated and is constructed from chrome steel for both rings and balls, offering excellent durability and a wide operating temperature range from -30°C to 110°C.
71922 CE/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications demanding high speed, accuracy, and rigidity, including:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Frequency Motors and Precision Gearboxes
- Robotic Drives and Automated Handling Systems
- Medical Equipment such as high-speed dental handpieces and centrifuges
