7206 ACD/P4AQBTC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7206 ACD/P4AQBTC
Basic Information
System of measurement
Metric
Weight
0.79 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
64 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
13
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13905 lbf
Radial static load rating
13725 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Tandem Back-to-Back (QBT)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Moderate / Class C
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 ACD/P4AQBTC Bearing Product Overview & Core Advantages
The 7206 ACD/P4AQBTC is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This quadruplex matched set, arranged in a Tandem Back-to-Back (QBT) configuration, is engineered to handle significant combined loads. With a P4A tolerance class and a moderate preload (Class C), it delivers high running accuracy and stability, making it ideal for high-precision, high-reliability machinery where uncompromising performance is critical.
7206 ACD/P4AQBTC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for handling combined radial and axial loads. |
| P4A | Indicates a high-precision tolerance class with strict limits on bore, outside diameter, and width runout, ensuring superior rotational accuracy. |
| QBT | Denotes a Quadruplex (4-bearing) matched set in a Tandem Back-to-Back arrangement. This configuration provides maximum rigidity and can accommodate complex load conditions from multiple directions. |
7206 ACD/P4AQBTC Bearing Structural Features & Performance Benefits
- Exceptional Rigidity and Load Capacity: The quadruplex QBT arrangement creates an extremely rigid bearing system, capable of supporting high combined loads (radial and axial) and moments. The 25° contact angle further enhances axial load carrying capacity.
- High-Speed Capability: The lightweight and robust phenolic resin cage ensures stable operation and reduced centrifugal forces, contributing to the high limiting speed of 100,500 rpm. The open design facilitates efficient lubrication and heat dissipation.
- Precision Performance: Manufactured to P4A tolerance class with a moderate preload, this bearing set minimizes axial and radial play, resulting in precise shaft positioning, reduced vibration, and smooth operation under high loads.
- Durable Construction: Made from high-grade chrome steel for both rings and balls, the bearing offers excellent wear resistance and long service life. The set is supplied lubricated and ready for installation.
7206 ACD/P4AQBTC Bearing Typical Application Areas
This precision bearing set is specifically designed for high-performance applications, including:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers requiring extreme rigidity and accuracy.
- Precision Gearboxes: Especially in applications involving high torque and complex loading.
- High-Frequency Spindles: Used in PCB drilling, engraving, and other high-RPM machining operations.
- Industrial Pumps and Compressors: Where reliable performance under significant axial and radial loads is essential.
