7206 ACD/P4ADT
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7206 ACD/P4ADT
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
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
13
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
8482 lbf
Radial static load rating
6862 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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/P4ADT Bearing Product Overview & Core Advantages
The 7206 ACD/P4ADT is a precision angular contact ball bearing configured in a Duplex Tandem (DT) arrangement. This matched pair is designed to handle primarily axial loads in one direction with exceptional rigidity and accuracy. Its P4A tolerance class ensures ultra-precision operation, making it ideal for high-speed spindles and other demanding applications requiring superior running accuracy and minimal deflection. The preloaded tandem setup provides maximum axial stiffness in a compact footprint.
7206 ACD/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7206 | Basic bearing series and size designation (30mm bore, 62mm OD). |
| AC | Angular Contact design with a 25° contact angle. |
| D | The bearing is part of a Duplex (matched) set. |
| P4A | Ultra-precision tolerance class, exceeding ABEC 7/ISO P4 standards, with specific focus on axial runout accuracy. |
| DT | Duplex Tandem arrangement. The two bearings are mounted in tandem to share and amplify axial load capacity in one direction. |
7206 ACD/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The Duplex Tandem (DT) arrangement combines two bearings to create an exceptionally stiff unit capable of supporting very high unidirectional axial loads. This configuration is essential for applications where shaft displacement must be minimized.
- Precision Performance: Manufactured to a P4A tolerance class, this bearing guarantees extremely tight dimensional and running accuracy, contributing to superior system performance, reduced vibration, and enhanced positional accuracy.
- High-Speed Capability: The lightweight phenolic cage reduces centrifugal forces, enabling stable operation at the high limiting speed of 100,500 rpm. The 25° contact angle provides an optimal balance between axial load capacity and speed.
- Optimized Internal Geometry: Precision-ground chrome steel rings and balls ensure smooth operation and long service life under high dynamic loads.
7206 ACD/P4ADT Bearing Typical Application Areas
This bearing is specifically engineered for high-performance machinery requiring extreme precision and rigidity, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors: Spindles for integrally mounted motor applications.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and other precision instruments.
