71822 ACD/P4
71800 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
71822 ACD/P4
Basic Information
System of measurement
Metric
Weight
0.51 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
140 mm
Outside diameter tolerance
-0.009mm to 0
Width
16 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° to 110 °C
Radial dynamic load rating
6795 lbf
Radial static load rating
8550 lbf
Limiting speed
12 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1580.23
/ each
In Stock
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71822 ACD/P4 Bearing Product Overview & Core Advantages
The 71822 ACD/P4 is a single-row angular contact ball bearing designed for applications requiring high precision and superior running accuracy. As a P4 (ABEC-7) tolerance class bearing, it delivers exceptional dimensional stability and minimal rotational vibration. Its key advantage lies in its ability to accommodate combined loads (radial and axial) simultaneously, making it ideal for high-speed spindles and precision machinery. The phenolic cage and optimized contact angle of 25° contribute to its high-speed capability and operational reliability.
71822 ACD/P4 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71822 | Basic bearing designation indicating dimensions (110mm bore, 140mm OD, 16mm width) |
| ACD | Angular Contact Design with a 25° contact angle and optimized internal geometry for high-speed performance |
| P4 | Precision tolerance class equivalent to ABEC-7, ensuring ultra-precise dimensions and runout control |
71822 ACD/P4 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The phenolic resin cage provides excellent strength-to-weight ratio and reduced friction, enabling operation at limiting speeds up to 12,000 rpm.
- Precision Performance: Manufactured to P4 tolerance class with strict bore, OD, and width tolerances for applications demanding minimal runout and vibration.
- Optimized Load Capacity: The 25° contact angle and chrome steel construction provide balanced radial and axial load capacity (6,795 lbf dynamic / 8,550 lbf static).
- Thermal Stability: Phenolic cage material maintains dimensional stability across the operating temperature range (-30°C to 110°C).
- Preload Compatibility: Designed to accommodate preload for enhanced system rigidity and precise shaft positioning.
71822 ACD/P4 Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and grinding spindles
- Precision Instrumentation: Measuring equipment and optical devices
- High-Speed Motors: Servo motors and high-frequency spindles
- Aerospace Components: Gyroscopes and navigation systems
- Medical Equipment: Dental handpieces and surgical tools
