7022 CD/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7022 CD/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
15 °
Ball & Washer Dimensions
Ball diameter
19.05 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
40050 lbf
Radial static load rating
48600 lbf
Limiting speed
16.25 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
No drawings available at the moment, will be launched soon
In Stock
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7022 CD/P4ADBB Bearing Product Overview & Core Advantages
The 7022 CD/P4ADBB is a precision duplex angular contact ball bearing configured in a back-to-back (DB) arrangement. Engineered to the exacting P4A tolerance class, this bearing is designed for applications demanding exceptional rotational accuracy and high system rigidity. Its primary advantage lies in its ability to support combined loads—simultaneously handling substantial radial loads and axial loads in both directions. The matched DB pairing and light preload (Class B) ensure optimal performance, making it an ideal solution for high-speed, high-precision machinery where stability and minimal runout are critical.
7022 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7022 CD/P4ADBB is decoded as follows:
- 7022: Basic series designation, indicating a 110 mm bore and 170 mm outside diameter.
- C: Denotes a 15° contact angle, optimized for high-speed operation.
- D: Signifies the bearing is part of a duplex set (two bearings).
- P4A: Indicates a super-precision tolerance class exceeding standard P4 levels, ensuring extreme dimensional and running accuracy.
- DB: Specifies the back-to-back mounting arrangement, which provides high moment rigidity and effective axial load capacity in both directions.
7022 CD/P4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex back-to-back (DB) design creates a wide effective spread between load centers, significantly increasing the system's resistance to moment loads and enhancing overall operational stability.
- Superior Load Capacity: With a dynamic load rating of 40,050 lbf and a static load rating of 48,600 lbf, this bearing is built to handle demanding combined radial and axial loads.
- Optimized High-Speed Performance: The 15° contact angle and lightweight phenolic resin cage work in concert to reduce centrifugal forces and friction, enabling a high limiting speed of 16,250 rpm.
- Precision Engineering: Manufactured to P4A super-precision tolerances with a light preload, the bearing ensures minimal vibration, precise shaft positioning, and extended service life in critical applications.
7022 CD/P4ADBB Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Gearboxes and High-Frequency Motorized Spindles.
- Industrial Pumps and Compressors requiring high shaft stability.
- Robotic Arm Joints and other automation equipment.
- Aerospace & Defense instrumentation and control systems.
