71806 CD/HCP4
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71806 CD/HCP4
Basic Information
System of measurement
Metric
Weight
0.024 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
42 mm
Outside diameter tolerance
-0.006mm to 0
Width
7 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
23
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
994 lbf
Radial static load rating
844 lbf
Limiting speed
60 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:
$ 296.54
/ each
In Stock
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71806 CD/HCP4 Bearing Product Overview & Core Advantages
The 71806 CD/HCP4 is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capabilities. Positioned in the P4 (ABEC-7) tolerance class, this bearing is designed to handle significant axial loads in one direction and moderate radial loads simultaneously. Its compact design, featuring a 30 mm bore and a 7 mm width, makes it ideal for space-constrained, high-performance assemblies. The combination of a ceramic ball material and a phenolic cage contributes to its superior high-speed performance and reduced rotational inertia.
71806 CD/HCP4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71806 | Basic bearing series and size designation. |
| CD | Indicates a high contact angle (15°) and a specific internal design optimized for high stiffness and axial load capacity. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which offer advantages in high-speed operation, reduced weight, and longer service life. |
| P4 | Denotes the precision tolerance class (equivalent to ABEC-7), ensuring extremely tight dimensional and running accuracy for demanding applications. |
71806 CD/HCP4 Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 15° contact angle and optimized internal geometry provide high resistance to deformation under combined loads, offering excellent axial load capacity and system stiffness.
- Superior High-Speed Performance: The hybrid ceramic balls and lightweight phenolic resin cage significantly reduce centrifugal forces and friction, enabling a high limiting speed of 60,000 rpm. This combination also provides electrical insulation.
- Precision Engineering: Manufactured to P4 tolerance class, this bearing ensures minimal runout and vibration, which is critical for maintaining accuracy in precision machinery.
- Preload Availability: The bearing is supplied with a preload, which eliminates internal clearance, increases system natural frequency, and enhances rotational accuracy for superior performance in spindle applications.
71806 CD/HCP4 Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for high-performance equipment where speed, accuracy, and rigidity are paramount. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Robotics and Automation Arms
- High-Frequency Spindles for PCB Drilling and Routing
- Medical Equipment (Dental handpieces, centrifuges)
- Aerospace Instrumentation and Guidance Systems
