71914 CBG/P4AG0
71900 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71914 CBG/P4AG0
Basic Information
System of measurement
Metric
Weight
0.35 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
16 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3105 lbf
Radial static load rating
2812 lbf
Limiting speed
31 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
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
In Stock
Price available upon request.
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71914 CBG/P4AG0 Bearing Product Overview & Core Advantages
The 71914 CBG/P4AG0 is a single-row angular contact ball bearing engineered for applications demanding exceptional precision and high-speed performance. Positioned in the P4A super-precision tolerance class, it delivers superior running accuracy and rotational stability. Its key advantage lies in its ability to handle combined radial and axial loads simultaneously, making it an ideal choice for high-rigidity spindles and precision machinery where uncompromising reliability is required. The bearing is universally matchable (SU), allowing for precise preload setting when mounted in pairs.
71914 CBG/P4AG0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing designation, indicating a high-precision angular contact bearing series with a 70mm bore, 100mm OD, and 16mm width. |
| C | Designates a 15° contact angle, optimized for high-speed operation and moderate axial load capacity. |
| B | Indicates a universally matchable (SU) bearing. When mounted in pairs (face-to-face or back-to-back), a specific preload can be achieved. |
| G | Specifies the preload level (light). |
| P4A | Denotes a super-precision tolerance class, exceeding ABEC 7/ISO P4 standards for exceptional dimensional and running accuracy. |
| G0 | Specifies the internal radial clearance group. |
71914 CBG/P4AG0 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a 15° contact angle and a lightweight, high-strength phenolic resin cage enables stable operation at high rotational speeds, with a limiting speed of 31,000 rpm.
- Superior Rigidity and Precision: Manufactured to P4A tolerance class with extremely tight dimensional tolerances on the bore, outside diameter, and width, this bearing provides high running accuracy and system rigidity, minimizing deflection under load.
- Optimized Load Capacity: The angular contact design efficiently supports combined radial and axial loads. With a dynamic load rating of 3105 lbf and a static load rating of 2812 lbf, it offers reliable performance in demanding applications.
- Universal Matching (SU): This feature allows two bearings to be mounted together as a matched set to share loads effectively and achieve a defined preload, enhancing spindle stiffness and rotational accuracy.
- Pre-Lubricated for Immediate Use: The bearing is factory-lubricated, ensuring optimal performance from initial startup and simplifying the installation process.
71914 CBG/P4AG0 Bearing Typical Application Areas
The 71914 CBG/P4AG0 is ideally suited for high-performance machinery requiring extreme precision and speed. Key application areas include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors: Spindles for electric motors and generators.
- Medical and Laboratory Equipment: Centrifuges and other precision rotary devices.
- Aerospace and Defense Systems: Gyroscopes and navigation instruments.
