71900 CE/HCPA9A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71900 CE/HCPA9A
Basic Information
System of measurement
Metric
Weight
0.008 kg
Tolerance class
PA9A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
10 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
22 mm
Outside diameter tolerance
-0.004mm 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°C to 110 °C
Radial dynamic load rating
457 lbf
Radial static load rating
176 lbf
Limiting speed
185 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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
In Stock
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71900 CE/HCPA9A Bearing Product Overview & Core Advantages
The 71900 CE/HCPA9A is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. This metric series bearing features a 15° contact angle and is supplied with a PA9A tolerance class, ensuring exceptional running accuracy and dimensional stability. Its core advantages include the ability to accommodate combined loads (radial and axial) efficiently, superior high-speed performance facilitated by a phenolic cage and ceramic balls, and availability with a specified preload for enhanced system rigidity and rotational accuracy in demanding setups.
Detailed Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 71900 | Basic bearing series and size designation (10mm bore, 22mm OD, 6mm width). |
| CE | Designates a 15° contact angle. |
| HCP | Refers to the phenolic (polyamide) cage. |
| A9A | Indicates the PA9A tolerance class, signifying very high precision. |
71900 CE/HCPA9A Bearing Structural Features & Performance Benefits
- High-Speed Capability & Thermal Stability: The combination of a lightweight phenolic cage and ceramic balls (silicon nitride) significantly reduces centrifugal forces and friction, enabling the high limiting speed of 185,000 rpm. Ceramic balls also offer superior resistance to thermal expansion compared to steel.
- High Rigidity and Precision: The angular contact design and availability with preload provide high axial and radial stiffness, minimizing deflection under load and ensuring precise shaft positioning critical for precision bearing applications.
- Superior Load Capacity: The optimized internal geometry and high-quality materials enable it to handle significant combined loads effectively, with a dynamic load rating of 457 lbf.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, simplifying installation and ensuring immediate operational readiness.
71900 CE/HCPA9A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications demanding high rotational accuracy and speed, including:
- High-Speed Spindles in CNC machining centers and PCB drilling machines
- Precision Instrumentation and optical scanners
- Dental Handpieces and small medical devices
- High-Frequency Motors and turbo-molecular pumps
