71913 FE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71913 FE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.17 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
90 mm
Outside diameter tolerance
-0.004mm to 0
Width
13 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
3712 lbf
Radial static load rating
2745 lbf
Limiting speed
36 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
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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71913 FE/HCP4A Bearing Product Overview & Core Advantages
The 71913 FE/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to a P4A tolerance class, this bearing offers superior dimensional stability and running accuracy. Its key advantage lies in its ability to accommodate combined loads—simultaneously handling significant radial and axial loads. The use of ceramic balls and a phenolic cage contributes to its high-speed capabilities and reduced operational weight, making it an ideal choice for high-reliability, high-rotational-speed machinery.
71913 FE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71913 | Basic bearing series and size designation (65mm bore, 90mm OD, 13mm width). |
| FE | Identifies a specific internal design optimized for high-speed operation and preload. |
| HC | Indicates the use of Hybrid Ceramic balls (steel rings with ceramic balls). |
| P4A | Specifies the tolerance class, denoting very high precision for both dimensions and running accuracy. |
71913 FE/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration, providing stable and precise shaft guidance essential for high-performance spindles.
- Superior Load Capacity: With an 18° contact angle, it is engineered to efficiently support substantial combined loads (radial and axial), making it suitable for complex load scenarios.
- Enhanced High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 36,000 rpm.
- Preload Availability: The design allows for the application of preload, which increases system stiffness, minimizes axial and radial play, and improves rotational accuracy.
- Optimized for Matched Sets: While supplied as a single bearing, its design allows it to be used in matched arrangements (back-to-back, face-to-face) to achieve specific stiffness and load-sharing characteristics.
71913 FE/HCP4A Bearing Typical Application Areas
This precision angular contact ball bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and laboratory equipment requiring high rotational accuracy.
- High-Frequency Motors and Spindles: Applications where low inertia and high-speed capability are critical.
- Advanced Robotics: Joint and arm mechanisms demanding high rigidity and precision.
