71800 ACDGA/P4
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71800 ACDGA/P4
Basic Information
System of measurement
Metric
Weight
0.005 kg
Tolerance class
P4
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
5 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
2.381 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
400 lbf
Radial static load rating
209 lbf
Limiting speed
95 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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71800 ACDGA/P4 Bearing Product Overview & Core Advantages
The 71800 ACDGA/P4 is a high-precision single row angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to accommodate combined loads, it efficiently handles both radial and substantial axial loads in one direction. Featuring P4 tolerance class precision, an Extra Light (A) preload, and a universal matching design, this bearing delivers superior rotational accuracy, high rigidity, and smooth operation. Its compact design with a 10mm bore makes it ideal for space-constrained, high-performance assemblies.
71800 ACDGA/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| DGA | Duplex arrangement face-to-face (DF) with an Extra Light preload (Class A). |
| P4 | Indicates a high-precision tolerance class for superior running accuracy. |
71800 ACDGA/P4 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The combination of a 25° contact angle and P4 tolerance class ensures high system rigidity and minimal runout, which is critical for precision applications.
- Superior Load Capacity: The angular contact design is optimized to handle significant combined radial and axial loads simultaneously.
- High-Speed Capability: The lightweight phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 95,000 rpm, making it a true high-speed bearing.
- Universal Matching (SU): This bearing is universally matchable, allowing for simplified mounting in duplex sets (face-to-face, back-to-back, or tandem) to achieve the required preload and stiffness without selective matching.
- Durability and Reliability: Manufactured from chrome steel for both rings and balls, this bearing offers excellent wear resistance and a long operational life.
71800 ACDGA/P4 Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- High-Speed Spindles in machine tools and CNC machining centers
- Precision components in aerospace and defense systems
- High-performance electric motors and encoder systems
- Critical assemblies in medical and dental equipment
- High-velocity shafts in robotics and automation
