7206 CD/P4ADFA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7206 CD/P4ADFA
Basic Information
System of measurement
Metric
Weight
0.39 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
30 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
13
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8932 lbf
Radial static load rating
7200 lbf
Limiting speed
71.5 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
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
Price available upon request.
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7206 CD/P4ADFA Bearing Product Overview & Core Advantages
The 7206 CD/P4ADFA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. This P4A tolerance class bearing features a face-to-face (DF) duplex arrangement, providing superior stability and the ability to accommodate combined radial and axial loads. With its extra light preload (Class A), phenolic cage, and optimized 15° contact angle, it is engineered for high-speed operation and long-term reliability in precision machinery.
7206 CD/P4ADFA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7206 CD/P4ADFA is decoded as follows:
- 7206: Basic series number (30mm bore, 62mm OD).
- C: 15° contact angle.
- D: Indicates a duplex bearing pair.
- P4A: High precision tolerance class (exceeding ABEC 7), with specific running accuracy requirements.
- DF: Duplex Face-to-Face mounting arrangement.
- A: Denotes Extra Light Preload (Class A).
7206 CD/P4ADFA Bearing Structural Features & Performance Benefits
- High Rigidity & Stability: The duplex face-to-face (DF) arrangement creates a rigid bearing system that effectively resists overturning moments, making it ideal for spindles requiring high positional accuracy.
- Superior Load Capacity: The angular contact design enables the bearing to handle significant combined loads (radial and axial loads acting simultaneously).
- High-Speed Performance: The lightweight phenolic resin cage ensures smooth operation and reduced centrifugal forces, contributing to a high limiting speed of 71,500 rpm. The 15° contact angle provides an optimal balance between axial load capacity and speed capability.
- Precision Operation: Manufactured to P4A tolerance class with tight dimensional and running accuracy tolerances, this bearing ensures minimal vibration and exceptional running precision.
- Optimized Preload: The extra light preload (Class A) minimizes friction and heat generation while eliminating internal clearance, ensuring high stiffness and accuracy from startup.
7206 CD/P4ADFA Bearing Typical Application Areas
This high-precision duplex bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles
- High-Frequency Motors
- Medical Equipment: Dental handpieces and imaging device rotors.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
