7222 CD/P4ADBA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7222 CD/P4ADBA
Basic Information
System of measurement
Metric
Weight
9.26 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
200 mm
Outside diameter tolerance
-0.004mm to 0
Width
76 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
26.988 mm
Ball quantity
16
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
64350 lbf
Radial static load rating
75375 lbf
Limiting speed
16 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
Extra light / Class A
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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7222 CD/P4ADBA Bearing Product Overview & Core Advantages
The 7222 CD/P4ADBA is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and rigidity. This back-to-back (DB) matched pair configuration is engineered to handle combined radial and axial loads simultaneously, providing superior stability and stiffness. Manufactured to P4A tolerance class with an extra light preload, it is ideal for high-speed, high-precision machinery where minimal runout and thermal stability are critical. Its open design allows for customized lubrication schemes to optimize performance.
7222 CD/P4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7222 | Basic bearing series, indicating a 110 mm bore, 200 mm OD, and 76 mm width. |
| C | 15° contact angle, optimized for handling combined loads. |
| D | Duplex arrangement (two bearings). |
| DB | Back-to-Back mounting, providing high moment rigidity. |
| P4A | High precision tolerance class with enhanced dimensional and running accuracy. |
| A | Extra light preload, minimizing friction and heat generation at high speeds. |
7222 CD/P4ADBA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The back-to-back duplex arrangement creates a wide effective spread, significantly increasing system rigidity and resistance to moment loads, making it suitable for applications demanding high positional accuracy.
- Superior Load Capacity: With a 15° contact angle and duplex design, this bearing set is engineered to support substantial combined radial and axial loads from both directions.
- Precision High-Speed Performance: The phenolic cage ensures low friction and excellent high-speed capability, complemented by the P4A precision and extra light preload for smooth operation up to the limiting speed of 16,000 rpm.
- Optimized for Custom Lubrication: The open seal type allows for the application of specific high-performance lubricants tailored to the operating environment, maximizing bearing life and performance within the -30°C to 110°C temperature range.
7222 CD/P4ADBA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed milling, grinding, and turning centers requiring extreme precision and rigidity.
- Precision Gearboxes: Applications where low noise, high speed, and accurate shaft positioning are critical.
- Industrial Pumps & Compressors: For handling axial and radial loads in high-performance fluid handling systems.
- Robotic Arms and Precision Automation: Joints and axes that demand high stiffness and rotational accuracy.
