71914 FEGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71914 FEGA/HCP4AL
Basic Information
System of measurement
Metric
Weight
0.27 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
18 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
22
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4860 lbf
Radial static load rating
3600 lbf
Limiting speed
28 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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71914 FEGA/HCP4AL Bearing Product Overview & Core Advantages
The 71914 FEGA/HCP4AL is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running precision. Its ceramic ball construction significantly reduces centrifugal forces, enabling superior high-speed performance up to 28,000 rpm. The combination of a phenolic cage and an 18° contact angle provides optimal high rigidity and stability under complex combined loads, making it an ideal solution for the most demanding spindle and precision machinery applications.
71914 FEGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| F | FineAlloy steel |
| E | Optimized internal design for high speed and low torque |
| GA | Light preload (Class A) |
| /HC | Hybrid Ceramic (Silicon Nitride balls) |
| P4A | High precision tolerance class (superior to ABEC 7) |
| L | Light preload |
71914 FEGA/HCP4AL Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The use of ceramic balls with steel rings reduces weight, minimizes centrifugal forces, and provides superior high-speed capability and extended service life.
- Phenolic Resin Cage: This lightweight and robust cage material offers excellent dimensional stability at high speeds and is well-suited for high-temperature applications, contributing to smooth operation.
- Precision Ground Geometry: Manufactured to P4A tolerance class with tight bearing dimensions control (bore and OD tolerance: -0.004mm to 0), ensuring minimal runout and vibration for ultra-precise applications.
- Optimized Internal Design: The 18° contact angle and light preload (Class A) provide high rigidity and accurate rotational performance, ideal for managing combined loads (radial and axial).
- Universal Matching (SU): These bearings are universal matchable, allowing for flexible mounting arrangements (DB, DF, DT) to achieve the required stiffness and load capacity in a spindle assembly.
71914 FEGA/HCP4AL Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Instrumentation: High-frequency spindles for PCB drilling and semiconductor manufacturing equipment.
- High-Speed Motors: Spindles for routers, engravers, and other high-RPM industrial motors.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision guidance systems.
