S71900 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S71900 ACD/HCP4A
Basic Information
System of measurement
Metric
Weight
0.009 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
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
-0.005mm to 0
Width
6 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
3.175 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
544 lbf
Radial static load rating
238 lbf
Limiting speed
85 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:
$ 121.22
/ each
In Stock
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S71900 ACD/HCP4A Bearing Product Overview & Core Advantages
The S71900 ACD/HCP4A is a precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. As a single-row bearing, it is designed to accommodate primarily radial loads and substantial axial loads in one direction. Its key advantages stem from a 25° contact angle and ceramic ball construction, which contribute to superior high-speed capability, reduced friction, and extended service life. The bearing comes pre-lubricated and sealed, offering a ready-to-install solution for high-precision, high-rigidity applications.
S71900 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Indicates a 25° contact angle design, optimized for high axial load capacity and high-speed operation. |
| HC | Signifies the use of Hybrid Ceramic balls (Silicon Nitride), which reduce weight, centrifugal force, and heat generation, enabling higher limiting speeds. |
| P4 | Denotes a high-precision tolerance class (ABEC-7 / ISO P4), ensuring minimal runout and vibration for ultra-precise applications. |
| Sealed | The bearing is equipped with integral seals to retain lubrication and exclude contaminants, ensuring long-term reliability. |
S71900 ACD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction and operating temperature. This construction provides electrical insulation, higher stiffness, and a dramatic increase in the limiting speed (85,000 rpm).
- High-Precision & Rigidity: Manufactured to P4 tolerance with a phenolic resin cage, this bearing offers exceptional dimensional stability and low vibration, which is critical for maintaining positional accuracy under high-speed rotation and combined loads.
- Optimized Load Capacity: The 25° contact angle is engineered to efficiently handle significant combined radial and axial loads, making it ideal for applications with complex loading conditions.
- Pre-Lubricated & Sealed: The integrated seals and factory-applied lubrication make the bearing maintenance-free for its entire service life, protecting it from contamination and ensuring consistent performance within the specified temperature range of -30° to 110 °C.
S71900 ACD/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance machinery where speed, precision, and reliability are paramount. Key application areas include:
- High-Speed Spindles for CNC machining centers and PCB drilling machines
- Precision Instrumentation and medical devices
- High-Frequency Motors and turbo-molecular pumps
- Aerospace auxiliary systems and instrumentation
