71819 ACD/P4DGC
71800 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
71819 ACD/P4DGC
Basic Information
System of measurement
Metric
Weight
0.58 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
95 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
120 mm
Outside diameter tolerance
-0.004mm to 0
Width
26 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
7605 lbf
Radial static load rating
11475 lbf
Limiting speed
15 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
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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71819 ACD/P4DGC Bearing Product Overview & Core Advantages
The 71819 ACD/P4DGC is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and rigidity. As part of a universally matchable (SU) pair, it excels at handling combined loads, accommodating both radial and significant axial loads in one direction. Manufactured to a P4 tolerance class, this bearing ensures superior running accuracy and is preloaded for high rigidity and minimal axial play, making it ideal for high-speed, high-precision spindles and machinery.
71819 ACD/P4DGC Bearing Model Code Explained, Specifications & Naming Convention
The model number 71819 ACD/P4DGC provides detailed technical specifications:
- 71819: Basic bearing series and size designation (95mm bore, 120mm OD, 26mm width).
- AC: Angular Contact design with a 25° contact angle.
- D: Indicates a specific internal design and moderate preload (Class C).
- P4: Denotes a high-precision tolerance class for superior running accuracy.
- DGC: Signifies the bearing is lubricated and part of a Universal Matchable (SU) set, allowing for flexible mounting arrangements in pairs.
71819 ACD/P4DGC Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4 tolerance class and moderate preload ensure exceptional dimensional stability and rotational accuracy, critical for applications requiring minimal runout.
- Superior Load Capacity: The 25° contact angle and robust construction enable the bearing to support high combined radial and axial loads efficiently.
- Optimized High-Speed Performance: The lightweight phenolic cage and precision-ground chrome steel components contribute to stable operation at high speeds, with a limiting speed of 15,000 rpm.
- Universal Matching Capability (SU): This bearing is designed to be universally matchable in any combination (face-to-face, back-to-back, or tandem) with another bearing of the same type, providing exceptional design flexibility for preloaded arrangements.
71819 ACD/P4DGC Bearing Typical Application Areas
The 71819 ACD/P4DGC is engineered for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- Industrial Pumps and Compressors
- Aerospace Control Systems
