71922 ACE/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71922 ACE/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
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
8482 lbf
Radial static load rating
7312 lbf
Limiting speed
16 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:
$ 1537.37
/ each
In Stock
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71922 ACE/P4A Bearing Product Overview & Core Advantages
The 71922 ACE/P4A is a single-row angular contact ball bearing engineered for applications demanding high precision and high-speed performance. Positioned in the P4 (ABEC-7) tolerance class, it offers exceptional dimensional accuracy and running precision. Its key advantage lies in its ability to support combined loads—significant radial loads and axial loads in one direction—making it ideal for high-rigidity applications. The bearing is preloaded and comes pre-lubricated, ensuring optimal performance from installation.
71922 ACE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Indicates a 25° contact angle and optimized internal geometry for high-speed operation and high axial load capacity. |
| P4A | Denotes a P4 tolerance class (ABEC-7) with specific running accuracy requirements, ensuring minimal vibration and superior performance in precision applications. |
71922 ACE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The 25° contact angle and robust internal design enable the bearing to handle substantial combined radial and axial loads, providing stable and rigid support for rotating components.
- High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio and low friction, contributing to a high limiting speed of 16,000 rpm. This makes it suitable for demanding high-speed spindles.
- Precision & Accuracy: Manufactured to P4 (ABEC-7) tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, ensuring smooth, quiet, and precise operation.
- Optimized for Preload: The bearing is supplied with preload, which increases system stiffness, reduces deflection under load, and improves rotational accuracy.
71922 ACE/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Gearboxes
- High-Frequency Motors
- Aerospace & Defense Systems (Gyroscopes, navigation systems)
- Medical Equipment (High-speed dental handpieces, centrifuges)
