71932 ACD/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71932 ACD/P4A
Basic Information
System of measurement
Metric
Weight
2.7 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
160 mm
Bore diameter tolerance
-0.01mm to 0
Outside diameter
220 mm
Outside diameter tolerance
-0.011mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
27900 lbf
Radial static load rating
34425 lbf
Limiting speed
8 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:
$ 2665.3
/ each
In Stock
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71932 ACD/P4A Bearing Product Overview & Core Advantages
The 71932 ACD/P4A is a single-row angular contact ball bearing designed for high-precision and high-speed applications. Engineered to a P4 (ABEC-7) tolerance class, it offers exceptional running accuracy. Its key advantage lies in its ability to support combined loads (radial and axial loads in one direction) efficiently. The bearing is preloaded, ensuring high system rigidity and precise rotational performance, making it ideal for demanding machinery where accuracy and reliability are paramount.
71932 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Indicates a 25° contact angle and a specific internal design optimized for high rigidity and precise axial load carrying capacity. |
| P4A | Denotes the tolerance class P4 (ABEC-7), signifying very high dimensional and running accuracy. The "A" may indicate specific accuracy or fitting requirements. |
71932 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design with a 25° contact angle provides excellent rigidity for precise shaft positioning. Manufactured to P4 tolerance, it ensures minimal runout and vibration.
- Superior Load Capacity: Engineered to handle significant combined radial and axial loads simultaneously. With a dynamic load rating of 27,900 lbf and a static load rating of 34,425 lbf, it offers robust performance under demanding conditions.
- Optimized High-Speed Performance: The phenolic resin cage is lightweight and strong, reducing centrifugal forces and allowing for a high limiting speed of 8,000 rpm. This makes it suitable for high-speed spindles and machinery.
- Pre-Lubricated & Ready for Use: The bearing comes lubricated and is suitable for a wide operating temperature range of -30°C to 110°C, ensuring immediate installation and reliable initial operation.
71932 ACD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for applications requiring high speed, accuracy, and rigidity, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Robotic Arms and Precision Positioning Systems
