71922 ACD/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71922 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.86 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
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
13162 lbf
Radial static load rating
15300 lbf
Limiting speed
12 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:
$ 522.73
/ each
In Stock
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71922 ACD/P4A Bearing Product Overview & Core Advantages
The 71922 ACD/P4A is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. Its defining feature is the 25° contact angle, which enables it to support significant combined loads—handling both radial and substantial axial loads in one direction simultaneously. Manufactured to P4 (ABEC-7) tolerance class, it guarantees exceptional running accuracy and rotational stability. The bearing is pre-lubricated and comes with a phenolic resin cage, contributing to its suitability for demanding operational environments where high rigidity and reliability are paramount.
71922 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 71922 ACD/P4A is decoded as follows:
- 71922: Basic series designation for a high-precision, single-row angular contact ball bearing.
- ACD: Indicates a 25° contact angle and a specific internal design optimized for high performance.
- P4A: Denotes the tolerance class. P4 is equivalent to ABEC-7, signifying ultra-precision manufacturing standards for minimal runout and vibration.
71922 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized 25° contact angle and robust internal geometry provide high resistance to deformation under combined loads, ensuring system stability.
- Superior High-Speed Performance: The lightweight and durable phenolic resin cage minimizes centrifugal forces, reduces friction, and allows for a high limiting speed of 12,000 rpm.
- Precision Engineering: Manufactured to P4 precision class with tight dimensional tolerances on the bore diameter, outside diameter, and width for exacting fit and superior running accuracy.
- Preload & Matched Arrangement: The bearing is supplied with a preload and is designed as a single, matched unit, simplifying installation and ensuring immediate, optimal performance.
71922 ACD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications requiring high speed, accuracy, and rigidity, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Equipment
- Industrial Pumps and Compressors
- Aerospace Control Systems
