71813 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71813 CD/HCP4
Basic Information
System of measurement
Metric
Weight
0.11 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
65 mm
Bore diameter tolerance
-0.007mm to 0
Outside diameter
85 mm
Outside diameter tolerance
-0.008mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
29
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
3038 lbf
Radial static load rating
3285 lbf
Limiting speed
28 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:
$ 641.3
/ each
In Stock
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71813 CD/HCP4 Bearing Product Overview & Core Advantages
The 71813 CD/HCP4 is a single-row angular contact ball bearing engineered for applications demanding high precision and superior rotational accuracy. Its primary advantage lies in its ability to accommodate combined loads—significant radial loads alongside substantial axial loads in one direction. Manufactured to a P4 (ABEC-7) tolerance class and featuring a ceramic ball and phenolic cage construction, this bearing is optimized for high-speed operation and offers exceptional rigidity and operational reliability in compact spaces.
71813 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71813 | Basic bearing designation, indicating the size series and bore diameter of 65 mm. |
| CD | Indicates a 15° contact angle and that the bearing is supplied with a specific preload for enhanced rigidity and precise shaft positioning. |
| HC | Signifies the use of Hybrid Ceramic components, specifically ceramic balls for reduced friction, lower operating temperature, and extended service life. |
| P4 | Denotes a high-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and superior running accuracy. |
71813 CD/HCP4 Bearing Structural Features & Performance Benefits
- High Rigidity and Preload: The CD designation confirms the bearing is supplied with a preload. This eliminates internal clearance, resulting in significantly increased system stiffness, reduced vibration, and improved positional accuracy of the shaft.
- Superior High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density ceramic balls reduces centrifugal forces, enabling a high limiting speed of 28,000 rpm. This makes it ideal for high-speed spindles.
- Enhanced Durability and Life: Ceramic balls are harder, lighter, and more electrically resistant than steel. They reduce friction and wear, offer better performance in lubricant-starved conditions, and resist degradation, leading to a longer operational life.
- Precision Engineering: The P4 tolerance class guarantees tight dimensional and running accuracy, which is critical for applications requiring minimal vibration and high rotational precision.
71813 CD/HCP4 Bearing Typical Application Areas
This high-precision, high-speed angular contact bearing is ideally suited for demanding applications, including:
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and milling spindles.
- Precision Instrumentation: High-speed measuring and inspection equipment.
- High-Frequency Motors and Spindles: Motors for PCB drilling and other high-RPM applications.
- Aerospace and Defense Systems: Gyroscopes, navigation systems, and other critical rotating assemblies.
