71800 CD/HCP2DBB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71800 CD/HCP2DBB
Basic Information
System of measurement
Metric
Weight
0.01 kg
Tolerance class
P2
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
19 mm
Outside diameter tolerance
-0.004mm to 0
Width
10 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
2.381 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
691 lbf
Radial static load rating
441 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
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
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71800 CD/HCP2DBB Bearing Product Overview & Core Advantages
The 71800 CD/HCP2DBB is a precision duplex angular contact ball bearing set engineered for applications demanding exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement is preloaded to Light / Class B specifications, ensuring optimal performance under combined radial and axial loads. Featuring a ceramic ball and phenolic cage construction, it is designed for high-speed operation and offers superior performance in challenging environments. Its compact design, with a 10 mm bore and 19 mm outside diameter, makes it ideal for high-precision spindles and other critical machinery components.
71800 CD/HCP2DBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71800 | Basic bearing series designation. |
| C | 15° contact angle. |
| D | Duplex (paired) bearing set. |
| HC | Hybrid Ceramic (Silicon Nitride) balls. |
| P2 | High precision tolerance class. |
| DB | Back-to-Back matched arrangement. |
71800 CD/HCP2DBB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex back-to-back (DB) arrangement creates a rigid bearing system that effectively withstands combined loads (radial and axial loads from both directions) and overturning moments, making it suitable for applications requiring high positional accuracy.
- Superior High-Speed Performance: The combination of lightweight phenolic resin cage and low-density, high-hardness ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and enables a high limiting speed of 95,000 rpm.
- Enhanced Durability & Longevity: Hybrid ceramic construction provides excellent wear resistance, reduced electrical arcing, and extended service life compared to all-steel bearings, especially in high-speed or electrically challenging environments.
- Precision Engineering: Manufactured to P2 tolerance class with tight dimensional control on the bore diameter, outside diameter, and width, ensuring smooth, quiet, and precise operation.
71800 CD/HCP2DBB Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- High-Frequency Spindles for PCB drilling and milling
- Precision Machine Tool Spindles
- High-Speed Automation & Robotics
- Medical & Dental Handpiece Drives
- Aerospace Instrumentation and auxiliary systems
