71914 CD/HCP4AL
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71914 CD/HCP4AL
Basic Information
System of measurement
Metric
Weight
0.28 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
9.525 mm
Ball quantity
24
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7762 lbf
Radial static load rating
7650 lbf
Limiting speed
24 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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71914 CD/HCP4AL Bearing Product Overview & Core Advantages
The 71914 CD/HCP4AL is a high-precision angular contact ball bearing designed for applications demanding exceptional accuracy and performance. This single bearing features a 15° contact angle and is supplied preloaded and lubricated from the factory, making it ready for immediate installation into high-speed spindles and other precision machinery. Its core advantages include superior running accuracy, high-speed capability enabled by its phenolic cage and ceramic balls, and the operational convenience of a pre-adjusted, pre-lubricated unit.
71914 CD/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| CD | Indicates a duplex bearing set with a specific preload (in this case, a universal match). |
| HC | Signifies the use of Hybrid Ceramic balls, offering reduced weight, lower friction, and superior high-speed performance. |
| P4A | Denotes an ultra-precision tolerance class (superior to ABEC 7 / ISO P4), ensuring minimal runout and vibration for the highest level of application accuracy. |
71914 CD/HCP4AL Bearing Structural Features & Performance Benefits
- High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls significantly reduces centrifugal forces, enabling the high limiting speed of 24,000 rpm.
- Rigidity and Accuracy: The 15° contact angle and factory-applied preload provide high axial and radial rigidity, minimizing deflection under load and ensuring precise shaft positioning.
- Extended Service Life: Hybrid ceramic construction offers inherent resistance to wear and a lower coefficient of thermal expansion compared to all-steel designs, contributing to consistent performance and longevity, especially in thermally demanding environments.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing guarantees exceptional dimensional stability and running accuracy, which is critical for applications like machine tool spindles.
71914 CD/HCP4AL Bearing Typical Application Areas
This bearing is engineered for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- High-Frequency Spindles: PCB drilling and routing machines.
- Medical Equipment: Dental handpieces and high-speed surgical tools.
- Aerospace Instrumentation: Gyroscopes and other navigation systems.
