71932 CD/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71932 CD/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
15 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
28
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
29250 lbf
Radial static load rating
36000 lbf
Limiting speed
9 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:
$ 797.29
/ each
In Stock
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71932 CD/P4A Bearing Product Overview & Core Advantages
The 71932 CD/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, it delivers superior running accuracy for demanding machinery. Its key advantage lies in its ability to accommodate combined radial and axial loads simultaneously, making it an ideal solution for applications where high rigidity and precise shaft positioning are critical. The bearing is pre-lubricated and features an open design, optimized for high-speed operation up to 9,000 rpm.
71932 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71932 | Basic bearing series and size designation (160mm bore, 220mm OD). |
| C | Specifies a 15° contact angle, optimized for high-speed performance and moderate axial load capacity. |
| D | Indicates the bearing is part of a matched set (though this unit is supplied as a single), implying high precision and selectable preload. |
| P4 | Denotes a high-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration. |
| A | Signifies that the bearing has a specific internal clearance and geometry optimized for preload and high-speed operation. |
71932 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row angular contact design with a 15° contact angle provides high rigidity and precise running accuracy, essential for maintaining stability under combined loads. Manufactured to P4 precision tolerances, it minimizes deflection and ensures consistent performance.
- Superior Load Capacity: Engineered to handle significant combined radial and axial loads. With a dynamic load rating of 29,250 lbf and a static load rating of 36,000 lbf, it offers reliable performance in demanding conditions.
- Optimized High-Speed Performance: The phenolic resin cage is lightweight and robust, reducing centrifugal forces and enabling a high limiting speed of 9,000 rpm. The open design and pre-lubrication facilitate efficient heat dissipation.
- Premium Materials: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and a long operational lifespan.
71932 CD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Speed Pumps and Compressors
- Precision Grinding Equipment
- Industrial Robotics and Automation Systems
- Medical and Laboratory Equipment
