7022 ACD/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7022 ACD/P4ADBB
Basic Information
System of measurement
Metric
Weight
3.95 kg
Tolerance class
P4A
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 Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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In Stock
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7022 ACD/P4ADBB Bearing Product Overview & Core Advantages
The 7022 ACD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back (DB) arrangement provides superior stability and can accommodate combined radial and axial loads from both directions. Manufactured to P4A tolerance class with a light preload (Class B), it delivers high running accuracy and is optimized for high-speed operation up to 10,000 rpm. Its compact design and phenolic cage make it an ideal choice for high-performance machinery.
7022 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7022 | Basic bearing designation indicating a 110 mm bore, 170 mm OD, and 56 mm width. |
| AC | Angular Contact design with a 25° contact angle for optimal axial load capacity. |
| D | Duplex (Two bearings supplied as a matched set). |
| P4A | High precision tolerance class ensuring extremely tight dimensional and running accuracy. |
| DBB | Back-to-Back arrangement, providing high moment rigidity and stability. |
7022 ACD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) configuration creates a wide effective spread, significantly increasing system rigidity and resistance to moment loads.
- Superior Load Capacity: The 25° contact angle and robust construction enable the bearing to handle significant combined radial and axial loads from both directions simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic resin cage reduces centrifugal forces, while the precision-ground chrome steel components and light preload contribute to smooth operation at the limiting speed of 10,000 rpm.
- Precision Engineering: Manufactured to P4A tolerance class with extremely tight bore, OD, and width tolerances, ensuring exceptional running accuracy and predictable performance in the most demanding applications.
7022 ACD/P4ADBB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles (e.g., milling, grinding, and turning centers)
- High-Frequency Spindles for PCB drilling and routing
- Precision Gearboxes and transmission systems
- Industrial Pumps and Compressors
- Robotic Arm Joints and Rotary Tables
