719/9 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
719/9 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.007 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
9 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
20 mm
Outside diameter tolerance
-0.005mm to 0
Width
6 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
11
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
448 lbf
Radial static load rating
172 lbf
Limiting speed
200 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 108.48
/ each
In Stock
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719/9 CE/HCP4A Bearing Product Overview & Core Advantages
The 719/9 CE/HCP4A is a single-row angular contact ball bearing engineered for applications demanding ultra-high precision and superior performance. Its design is optimized to handle combined loads, primarily thrust loads in one direction, while also supporting significant radial loads. A key feature is its P4 (ABEC-7) tolerance class, ensuring exceptional running accuracy and rotational stability. The combination of a ceramic ball material and a phenolic cage contributes to its high-speed capability, low friction, and extended service life, making it an ideal choice for high-reliability, high-performance machinery.
719/9 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 719/9 | Denotes the bearing series and bore diameter (9 mm). |
| CE | Indicates a 15° contact angle, optimized for high-speed applications and high thrust load capacity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), offering advantages in speed, stiffness, and reduced heat generation. |
| P4A | Specifies the P4 (ABEC-7) tolerance class, guaranteeing extremely tight dimensional and running accuracy for precision applications. |
719/9 CE/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Performance: The phenolic resin cage is lightweight and possesses excellent sliding properties, while the ceramic balls have lower density, reducing centrifugal force. This combination enables the bearing to achieve its high limiting speed of 200,000 rpm.
- High Rigidity and Precision: Manufactured to P4 tolerance standards, this bearing ensures minimal runout and vibration. The inherent stiffness of the angular contact design provides stable and precise rotational performance under load.
- Extended Service Life and Reliability: Hybrid ceramic construction offers superior wear resistance and is electrically insulating, mitigating damage from electrical arcing. The phenolic cage is durable and suitable for high-speed operation, contributing to overall bearing longevity.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, ensuring optimal performance from the first rotation and simplifying installation.
719/9 CE/HCP4A Bearing Typical Application Areas
This high-precision angular contact bearing is ideally suited for demanding applications, including:
- High-Speed Spindles for CNC machining centers and PCB drilling machines
- Precision Instrumentation and medical devices
- High-Frequency Motors and turbo-molecular pumps
- Aerospace and Defense systems requiring high reliability
