71914 CD/P4ADFA
71900 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71914 CD/P4ADFA
Basic Information
System of measurement
Metric
Weight
0.66 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
70 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
100 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
12578 lbf
Radial static load rating
15300 lbf
Limiting speed
24 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Face-to-Face (DF)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71914 CD/P4ADFA Bearing Product Overview & Core Advantages
The 71914 CD/P4ADFA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This duplex face-to-face (DF) matched set features an Extra Light (Class A) preload, making it ideal for high-speed spindles and other precision machinery. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously while maintaining high running accuracy and system stability under demanding conditions.
Model Code In-Depth Analysis
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing designation, indicating a high-precision angular contact ball bearing series with a 70 mm bore, 100 mm OD, and 32 mm width. |
| C | 15° contact angle, optimized for handling moderate axial loads. |
| D | Duplex Face-to-Face (DF) arrangement of the two matched bearings. |
| P4A | High precision tolerance class (equivalent to ABEC 7), ensuring minimal runout and superior dimensional accuracy. |
| DF | Reiterates the Duplex Face-to-Face matched set configuration. |
| A | Specifies Extra Light preload (Class A), minimizing friction and heat generation for optimal high-speed performance. |
71914 CD/P4ADFA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex face-to-face (DF) arrangement creates a highly rigid bearing system capable of supporting significant combined radial and axial loads from both directions. The 15° contact angle is precisely engineered for this load-sharing capability.
- Superior High-Speed Performance: The combination of an Extra Light preload and a lightweight, durable phenolic cage minimizes centrifugal forces and friction, enabling a high limiting speed of 24,000 rpm. The open design allows for efficient lubrication management.
- Exceptional Precision: Manufactured to P4A tolerance class, this bearing guarantees extremely tight dimensional control (bore/OD tolerance: -0.004mm to 0) and low runout, which is critical for applications requiring high rotational accuracy.
- Premium Materials: Constructed from chrome steel for both rings and balls, the bearing offers high hardness, wear resistance, and long-term dimensional stability.
71914 CD/P4ADFA Bearing Typical Application Areas
This precision duplex bearing set is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles
- High-Frequency Motors
- Medical Equipment Spindles
- Aerospace Positioning Systems
