S71910 ACB/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
S71910 ACB/HCP4ADGA
Basic Information
System of measurement
Metric
Weight
0.27 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
50 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
72 mm
Outside diameter tolerance
-0.004mm to 0
Width
24 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
29
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2678 lbf
Radial static load rating
2655 lbf
Limiting speed
34 X 1000 rpm
Lubrication
Grease
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 222.03
/ each
In Stock
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S71910 ACB/HCP4ADGA Bearing Product Overview & Core Advantages
The S71910 ACB/HCP4ADGA is a precision angular contact ball bearing engineered for demanding applications. This matched set bearing features a double-row design that provides exceptional high rigidity and the ability to handle combined loads—simultaneously supporting significant radial and bidirectional axial forces. Manufactured to P4A super-precision tolerance and featuring ceramic balls and a phenolic cage, it delivers superior high-speed performance and operational accuracy in a compact form factor, making it ideal for high-reliability, precision machinery.
S71910 ACB/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| 719 | Indicates the bearing series, defining the cross-section and internal design. |
| ACB | Signifies a 25° contact angle and specific internal geometry optimized for high rigidity and speed. |
| HCP4A | Denotes the P4A super-precision tolerance class and the use of hybrid ceramic balls for enhanced performance. |
| DGA | Specifies the sealed design and the type of grease lubrication pre-applied. |
S71910 ACB/HCP4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double-row angular contact design and 25° contact angle provide superior stiffness, enabling the bearing to effectively handle combined radial and axial loads from both directions.
- Superior High-Speed Performance: The combination of hybrid ceramic balls (reducing centrifugal forces and friction) and a lightweight phenolic resin cage allows for a very high limiting speed of 34,000 rpm.
- Exceptional Precision: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for applications requiring high rotational accuracy.
- Long-Term Reliability & Maintenance-Free Operation: The integral seals and factory-applied grease lubrication protect against contamination and provide consistent performance across a wide temperature range from -30°C to 110°C.
S71910 ACB/HCP4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision, speed, and reliability are paramount. Key applications include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Grinding Spindles
- High-Frequency Motors
- Industrial Pumps and Compressors
- Advanced Robotics and Automation Equipment
