7206 ACD/P4ATBTB
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7206 ACD/P4ATBTB
Basic Information
System of measurement
Metric
Weight
0.59 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
48 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
11408 lbf
Radial static load rating
10238 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Phenolic
Technical Drawings
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7206 ACD/P4ATBTB Bearing Product Overview & Core Advantages
The 7206 ACD/P4ATBTB is a precision angular contact ball bearing designed for applications demanding exceptional rigidity and rotational accuracy. This bearing is supplied as a triplex back-to-back (TBT) matched set, enabling it to handle significant combined loads (radial and axial) from both directions simultaneously. Manufactured to the stringent P4A tolerance class, it offers superior running accuracy and is ideally suited for high-speed spindles and other precision machinery where high rigidity and uncompromising performance are critical.
7206 ACD/P4ATBTB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7206 ACD | Basic bearing designation. 7206 indicates a 30mm bore, 62mm OD angular contact bearing. A signifies a 30° contact angle (standard for this series). CD indicates a duplex bearing with a specific internal clearance and preload. |
| P4A | The tolerance class, denoting very high precision levels for dimensional and running accuracy, superior to ABEC 7. |
| TBT | Specifies the matched arrangement as Triplex Back-to-Back. This configuration provides maximum rigidity and moment load capacity. |
7206 ACD/P4ATBTB Bearing Structural Features & Performance Benefits
- High Rigidity & Moment Load Capacity: The triplex back-to-back (TBT) arrangement creates a highly rigid bearing system that effectively resists moment loads and shaft deflection, ensuring stable operation under heavy combined loads.
- Superior Precision & High-Speed Capability: Manufactured to P4A tolerance class with a phenolic resin cage, this bearing ensures minimal vibration and is optimized for high-speed operation up to 100,500 rpm. The phenolic cage offers excellent strength-to-weight ratio and operates smoothly at high velocities.
- Optimized Contact Angle: The 25° contact angle provides an excellent balance between radial and axial load carrying capacity, making it versatile for various load conditions.
- Premium Material Construction: Both rings and balls are made from high-grade chrome steel, ensuring high durability, wear resistance, and long service life under demanding conditions.
7206 ACD/P4ATBTB Bearing Typical Application Areas
This precision angular contact ball bearing set is engineered for the most demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing machines.
- High-Frequency Motors: Spindles for robotics and automation.
- Other Precision Rotary Equipment: Where high rigidity, accuracy, and speed are paramount.
