71914 FE/HCP4ALDT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71914 FE/HCP4ALDT
Basic Information
System of measurement
Metric
Weight
0.55 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
18 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8055 lbf
Radial static load rating
7088 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
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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71914 FE/HCP4ALDT Bearing Product Overview & Core Advantages
The 71914 FE/HCP4ALDT is a precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) matched set is preloaded and manufactured to P4A tolerance class, ensuring superior running accuracy and system rigidity. Its key advantage lies in its ability to handle high combined loads—specifically thrust loads in one direction—with excellent high-speed capabilities, making it ideal for high-precision, high-reliability spindles and systems.
71914 FE/HCP4ALDT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71914 | Basic bearing series and size designation (70mm bore, 100mm OD). |
| FE | Steel reinforced phenolic resin (Polyamide) cage, optimized for high-speed operation and reduced friction. |
| HC | Hybrid Ceramic: Signifies the use of ceramic balls, which reduce weight, centrifugal force, and heat generation, further enhancing limiting speed and service life. |
| P4A | The tolerance class denoting very high precision for bore, outer diameter, and width, ensuring minimal runout and vibration. |
| DT | Duplex Tandem arrangement. Two bearings are mounted together to increase axial load capacity in a single direction. |
71914 FE/HCP4ALDT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem (DT) arrangement and 18° contact angle are specifically engineered to provide maximum rigidity and support for high thrust loads in one direction, making the assembly exceptionally stable under heavy combined loads.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage (FE) and ceramic balls (HC) significantly reduces rotational mass and centrifugal forces. This design is pivotal for achieving the high limiting speed of 28,000 rpm, minimizing friction and operational temperature.
- Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional controls on bore, outer diameter, and width, this bearing ensures precise shaft positioning, low noise, and minimal vibration for critical applications.
- Preloaded & Ready-to-Mount: Supplied as a preloaded matched set, the bearing simplifies installation, guarantees immediate optimal performance, and eliminates the need for complex adjustment procedures.
71914 FE/HCP4ALDT Bearing Typical Application Areas
This precision bearing is ideally suited for high-performance machinery where speed, accuracy, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing equipment.
- High-Frequency Motors and turbo-molecular pumps.
- Other advanced industrial machinery requiring high-speed angular contact bearings.
