71822 ACD/P4DGB
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71822 ACD/P4DGB
Basic Information
System of measurement
Metric
Weight
1.01 kg
Tolerance class
P4
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
8.731 mm
Ball quantity
32
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
10980 lbf
Radial static load rating
17212 lbf
Limiting speed
16 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
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
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
71822 ACD/P4DGB Bearing Product Overview & Core Advantages
The 71822 ACD/P4DGB is a precision angular contact ball bearing designed for demanding applications requiring exceptional rotational accuracy and rigidity. As part of the universal matchable (SU) series, this bearing is supplied in a pre-set pair, enabling it to accommodate combined loads (radial and axial) from both directions simultaneously. Its P4 tolerance class ensures ultra-precise dimensions and running accuracy, making it ideal for high-speed spindles and other precision machinery where minimal runout and high system rigidity are critical.
71822 ACD/P4DGB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71822 | Basic bearing series and size designation (110mm bore, 140mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | The bearing is supplied as a Universal Matchable (SU) pair. |
| P4 | Indicates a high-precision tolerance class for superior running accuracy. |
| DGB | The paired set is pre-loaded with a Light preload (Class B). |
71822 ACD/P4DGB Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The double row angular contact design and Universal Matchable (SU) pairing provide high system rigidity, enabling the bearing to handle significant combined radial and axial loads from both directions without the need for complex mounting adjustments.
- Precision High-Speed Performance: Manufactured to P4 tolerance standards, this bearing guarantees minimal vibration and heat generation. The lightweight phenolic cage and optimized 25° contact angle contribute to stable operation at the high limiting speed of 16,000 rpm.
- Optimized for Precision Mounting: The universal matchable feature allows the paired bearings to be mounted in any configuration (face-to-face, back-to-back, or tandem) while maintaining pre-defined preload and performance characteristics, simplifying installation in complex spindle assemblies.
- Durable Construction: Components made from chrome steel for both rings and balls offer high wear resistance and durability, ensuring a long service life under demanding operating conditions.
71822 ACD/P4DGB Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: Applications in PCB drilling, precision grinding, and other high-accuracy machining.
- High-Frequency Motors: Where precise rotor positioning and high rotational speeds are required.
- Robotic Arm Joints: Providing high rigidity and accuracy in automation systems.
