7006 ACD/P4ATBTG39
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7006 ACD/P4ATBTG39
Basic Information
System of measurement
Metric
Weight
0.34 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
55 mm
Outside diameter tolerance
-0.004mm to 0
Width
39 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
6660 lbf
Radial static load rating
5130 lbf
Limiting speed
53 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
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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7006 ACD/P4ATBTG39 Bearing Product Overview & Core Advantages
The 7006 ACD/P4ATBTG39 is a precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This bearing is supplied as a triplex back-to-back (TBT) matched set, delivering superior performance under combined loads. Its P4A tolerance class ensures high running accuracy, making it ideal for high-speed spindles and other precision machinery where high rigidity and reliability are paramount.
7006 ACD/P4ATBTG39 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Basic bearing series, indicating a 30mm bore, 55mm OD, and 13mm width per single bearing. |
| ACD | Angular Contact design with a 25° contact angle. |
| P4A | Indicates a high-precision tolerance class exceeding ABEC 7/ISO P4 standards. |
| TBT | Denotes a Triplex Back-to-Back matched set of three bearings, pre-configured for optimal load sharing and rigidity. |
| G39 | Specifies the axial internal clearance group for the matched set. |
7006 ACD/P4ATBTG39 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The triplex back-to-back arrangement creates a highly rigid bearing system capable of supporting significant combined radial and axial loads from both directions. The 25° contact angle is optimized for sustaining high axial loads.
- Precision & High-Speed Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and smooth operation. The lightweight phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 53,000 rpm, suitable for high-speed applications.
- Optimized Internal Design: Features 14 precision balls made from chrome steel for high durability and consistent performance. The bearing is pre-lubricated for immediate operation within its specified temperature range.
- Preload & Matched Set: The set is supplied with a defined preload, eliminating the need for complex adjustment during installation and ensuring immediate, precise performance.
7006 ACD/P4ATBTG39 Bearing Typical Application Areas
This precision bearing is engineered for high-performance applications, including:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Spindles in PCB drilling and routing equipment
- High-frequency Main Shafts
- Other high-precision, high-rigidity rotary systems
