7022 ACD/HCPA9ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7022 ACD/HCPA9ADT
Basic Information
System of measurement
Metric
Weight
3.27 kg
Tolerance class
PA9A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
110 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
170 mm
Outside diameter tolerance
-0.004mm to 0
Width
56 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
37800 lbf
Radial static load rating
46800 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
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7022 ACD/HCPA9ADT Bearing Product Overview & Core Advantages
The 7022 ACD/HCPA9ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional performance under combined loads. This duplex tandem (DT) arrangement consists of two preloaded bearings, delivering superior high rigidity and axial load capacity in one direction. Manufactured to an ultra-precise PA9A tolerance class and featuring a phenolic cage with ceramic balls, it is engineered for high-speed operation and extended service life in precision machinery.
7022 ACD/HCPA9ADT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| AC | Angular Contact design with a 25° contact angle. |
| D | Indicates a Duplex pair of bearings. |
| HCPA9A | Specifies the high-precision tolerance class (PA9A) and preload designation for the duplex set. |
| DT | Denotes the Tandem arrangement, where the two bearings are mounted to increase axial load capacity in one direction. |
7022 ACD/HCPA9ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex tandem arrangement with applied preload creates an exceptionally stiff bearing system, capable of handling high combined radial and axial loads.
- Superior High-Speed Performance: The combination of a lightweight phenolic cage and low-density ceramic balls reduces centrifugal forces, enabling stable operation at the limiting speed of 10,000 rpm.
- Precision & Accuracy: Manufactured to PA9A tolerance class with tight dimensional controls on bore diameter and outside diameter, ensuring minimal runout and precise shaft positioning.
- Reduced Maintenance: The bearing is supplied lubricated and ready for installation, suitable for the specified temperature range.
7022 ACD/HCPA9ADT Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where precision, speed, and rigidity are critical. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Spindles: In PCB drilling, semiconductor manufacturing, and other high-accuracy processes.
- High-Frequency Motors: Where minimal vibration and high rotational accuracy are required.
