71922 CE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71922 CE/HCP4A
Basic Information
System of measurement
Metric
Weight
0.7 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
150 mm
Outside diameter tolerance
-0.009mm to 0
Width
20 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
26
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
9068 lbf
Radial static load rating
7762 lbf
Limiting speed
22 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:
$ 1537.07
/ each
In Stock
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71922 CE/HCP4A Bearing Product Overview & Core Advantages
The 71922 CE/HCP4A is a single-row angular contact ball bearing engineered for applications demanding high precision and superior performance. Designed to accommodate primarily axial loads in one direction and combined loads, its key advantages stem from its P4 (ABEC-7) tolerance class for exceptional running accuracy, a ceramic ball and phenolic cage construction enabling high-speed operation, and the availability of preload for enhanced system rigidity. This configuration makes it ideal for high-reliability, high-speed machinery.
71922 CE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71922 | Basic bearing designation indicating a high-precision, light series angular contact bearing with a 110mm bore. |
| CE | Signifies a 15° contact angle, optimized for high-speed applications requiring a balance between axial and radial load capacity. |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride), which reduce friction, heat generation, and wear, contributing to a higher limiting speed. |
| P4A | Denotes the tolerance class P4 (ABEC-7), ensuring extremely tight dimensional and running accuracy for precision applications. |
71922 CE/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces and friction, allowing for a limiting speed of 22,000 rpm. This also provides electrical insulation and extended service life.
- Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high speeds, further supporting the bearing's high-velocity capabilities.
- High Precision & Rigidity: Manufactured to P4 tolerance and available with preload, this bearing provides superior running accuracy, minimal vibration, and increased system stiffness, which is critical for precise positioning.
- Optimized Load Capacity: With a 15° contact angle, it efficiently handles combined (radial and axial) loads, offering a dynamic load rating of 9068 lbf and a static load rating of 7762 lbf.
71922 CE/HCP4A Bearing Typical Application Areas
This high-performance bearing is ideally suited for:
- Machine Tool Spindles (High-speed milling and grinding)
- Precision Robotics and Automation Arms
- High-Frequency CNC Machining Centers
- Aerospace Actuators and Instrumentation
- Medical Equipment such as dental handpieces and imaging devices
