71910 ACE/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
71910 ACE/HCP4A
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
50 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.007mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
21
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2722 lbf
Radial static load rating
1834 lbf
Limiting speed
43 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:
$ 404.69
/ each
In Stock
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71910 ACE/HCP4A Bearing Product Overview & Core Advantages
The 71910 ACE/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Positioned as a precision bearing with a P4 (ABEC-7) tolerance class, it delivers superior performance in demanding environments. Its key advantage lies in its ability to accommodate high combined loads, efficiently handling both radial and significant axial loads in one direction due to its specific contact angle. The combination of a ceramic ball material and a phenolic cage enables superior high-speed performance and reduced rotational inertia.
71910 ACE/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACE | Specific internal design and contact angle (25°). |
| HC | Indicates the use of Hybrid Ceramic balls (Silicon Nitride). |
| P4 | Denotes a high-precision tolerance class, equivalent to ABEC-7. |
| A | Signifies that the bearing is supplied with a specific preload for immediate high-rigidity performance. |
71910 ACE/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed & High-Rigidity Performance: The phenolic resin cage is lightweight and robust, contributing to lower centrifugal forces and higher limiting speeds. The 25° contact angle and factory-applied preload provide high system rigidity, minimizing deflection under load.
- Superior Load Capacity: Designed as an angular contact bearing, it is optimized to support significant combined radial and axial loads simultaneously, making it ideal for applications with complex loading conditions.
- Advanced Material Technology: The use of hybrid ceramic balls (Silicon Nitride) reduces friction, wear, and heat generation. This material combination also offers electrical insulation, extended service life, and the ability to operate with minimal lubrication.
- Precision Engineering: Manufactured to a P4 tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
71910 ACE/HCP4A Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key application areas include:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace & Defense Actuators
- Semiconductor Manufacturing Equipment
