7224 CD/P4ADFB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7224 CD/P4ADFB
Basic Information
System of measurement
Metric
Weight
10.8 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
120 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
215 mm
Outside diameter tolerance
-0.004mm to 0
Width
80 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
30.162 mm
Ball quantity
15
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
73125 lbf
Radial static load rating
87750 lbf
Limiting speed
10 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Face-to-Face (DF)
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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7224 CD/P4ADFB Bearing Product Overview & Core Advantages
The 7224 CD/P4ADFB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high rigidity. This matched face-to-face (DF) arrangement is preloaded to Light / Class B standards, ensuring optimal performance under combined radial and axial loads. Manufactured to a P4A tolerance class, it delivers superior running accuracy and is ideal for high-speed spindles and other demanding precision machinery.
7224 CD/P4ADFB Bearing Model Code Explained, Specifications & Naming Convention
The model number 7224 CD/P4ADFB provides detailed technical specifications:
- 7224: Basic bearing series and size designation (Bore: 120mm, OD: 215mm, Width: 80mm)
- C: 15° contact angle
- D: Indicates a duplex pair
- P4A: High precision tolerance class (exceeding ABEC 7/ISO P4)
- DF: Duplex Face-to-Face mounting arrangement
- B: Light preload
7224 CD/P4ADFB Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The duplex face-to-face (DF) arrangement and light preload create a highly rigid bearing system capable of withstanding significant combined radial and axial loads from both directions.
- Precision Performance: The P4A tolerance class guarantees extremely tight dimensional and running accuracy, minimizing vibration and ensuring smooth operation.
- Optimized High-Speed Operation: The phenolic resin cage and 15° contact angle are engineered for stable performance at high rotational speeds, with a limiting speed of 10,000 rpm.
- Superior Material Construction: Manufactured from chrome steel for both rings and balls, providing high durability and long service life under demanding conditions.
7224 CD/P4ADFB 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
- High-Frequency Motors
- Industrial Pumps and Compressors
- Aerospace Positioning Systems
