71952 CD/P4A
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71952 CD/P4A
Basic Information
System of measurement
Metric
Weight
12.2 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
260 mm
Bore diameter tolerance
-0.013mm to 0
Outside diameter
360 mm
Outside diameter tolerance
-0.015mm to 0
Width
46 mm
Width tolerance
-0.24mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
30.162 mm
Ball quantity
29
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
63225 lbf
Radial static load rating
95625 lbf
Limiting speed
5.3 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:
$ 7088.91
/ each
In Stock
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71952 CD/P4A Bearing Product Overview & Core Advantages
The 71952 CD/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to a P4 (ABEC-7) tolerance class, it is ideally suited for high-speed spindles and other precision machinery. Its primary advantage lies in its ability to accommodate combined loads—simultaneously handling significant radial loads and axial loads in one direction. The phenolic cage and optimized internal geometry contribute to its high-speed capability and smooth operation, making it a reliable choice for demanding industrial environments.
71952 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a specific contact angle of 15° and optimized internal design for high rigidity and precise operation. |
| P4A | Denotes a very high precision tolerance class (P4/ABEC-7). The 'A' suffix often specifies dimensional and running accuracy requirements. |
71952 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The 15° contact angle and P4 tolerance class ensure minimal runout and superior stability under load, providing the high rigidity required for precision machining and instrumentation.
- Superior Load Capacity: With a dynamic load rating of 63,225 lbf and a static load rating of 95,625 lbf, this bearing is engineered to handle demanding combined radial and axial loads.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, enabling a high limiting speed of 5,300 rpm. The open design facilitates efficient lubrication management.
- Durability and Reliability: Manufactured from chrome steel for both rings and balls, the bearing offers excellent wear resistance and a long operational life, suitable for a temperature range of -30°C to 110°C.
71952 CD/P4A Bearing Typical Application Areas
This precision angular contact ball bearing is critical in high-performance applications such as:
- Machine Tool Spindles (e.g., CNC milling, grinding, and turning centers)
- High-Speed Precision Spindles
- Industrial Pumps and Compressors
- Precision Medical and Laboratory Equipment
