S7006 ACB/P4ADFA
Sealed Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
S7006 ACB/P4ADFA
Basic Information
System of measurement
Metric
Weight
0.26 kg
Tolerance class
P4A
Seal type
Sealed
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
26 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
20
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2239 lbf
Radial static load rating
1755 lbf
Limiting speed
71.5 X 1000 rpm
Lubrication
Grease
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
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In Stock
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S7006 ACB/P4ADFA Bearing Product Overview & Core Advantages
The S7006 ACB/P4ADFA is a precision duplex angular contact ball bearing designed for applications demanding exceptional rigidity and running accuracy. This matched set features a Face-to-Face (DF) arrangement with an Extra Light (Class A) preload, making it ideal for high-speed spindles and other precision machinery. Its sealed design and P4A tolerance class ensure reliable, long-lasting performance under combined radial and axial loads.
S7006 ACB/P4ADFA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACB | Angular Contact Bearing, 25° contact angle. |
| P4A | High precision tolerance class for superior running accuracy and dimensional stability. |
| DF | Duplex Face-to-Face arrangement. Enhances system rigidity and accommodates bidirectional axial loads. |
| Sealed | Integrated seals protect against contamination and retain lubricant, enabling maintenance-free operation. |
S7006 ACB/P4ADFA Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The duplex DF arrangement and P4A tolerance class provide exceptional system stiffness and rotational accuracy, critical for minimizing deflection in high-precision applications.
- Superior Load Capacity: The 25° contact angle and robust construction enable high radial dynamic load rating (2239 lbf) and effective handling of combined loads.
- Optimized High-Speed Performance: The lightweight phenolic cage and precision-ground chrome steel components contribute to a high limiting speed of 71,500 rpm, reducing centrifugal forces and heat generation.
- Long Service Life & Reliability: Pre-greased and sealed, this bearing is protected from contaminants, ensuring consistent performance and reducing the need for re-lubrication across its operating temperature range (-30°C to 110°C).
S7006 ACB/P4ADFA Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications requiring precision and speed, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Advanced Robotics and Automation Equipment
