7006 ACDGB/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7006 ACDGB/HCP4A
Basic Information
System of measurement
Metric
Weight
0.095 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
13 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
3105 lbf
Radial static load rating
1721 lbf
Limiting speed
71.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
No drawings available at the moment, will be launched soon
In Stock
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7006 ACDGB/HCP4A Bearing Product Overview & Core Advantages
The 7006 ACDGB/HCP4A is a precision angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and high-speed performance. As a universal matchable bearing supplied in a pre-loaded duplex set, it is designed to provide superior axial and radial load capacity simultaneously. Its construction with a phenolic cage and ceramic balls enables outstanding high-speed capabilities and operational stability, making it ideal for high-precision, high-reliability machinery where rigidity and minimal thermal expansion are critical.
7006 ACDGB/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| AC | Angular Contact design with a 25° contact angle | Optimized for handling combined loads. |
| DGB | Duplex set, Back-to-Back arrangement | Provides high moment rigidity and accommodates moment loads. |
| HC | Hybrid Ceramic (Silicon Nitride balls) | Enables higher speeds, reduced friction, and longer service life. |
| P4A | High precision tolerance class (superior to ABEC 7) | Guarantees exceptional running accuracy and low vibration. |
7006 ACDGB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The back-to-back duplex arrangement creates a rigid bearing system that can withstand significant combined radial and axial loads from both directions, as well as moment loads.
- Superior High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density ceramic balls reduces centrifugal forces, allowing for a very high limiting speed of 71,500 rpm.
- Precision & Accuracy: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for maintaining precision in spindle applications.
- Pre-Loaded for Optimal Performance: The set is supplied with a light preload (Class B), eliminating internal clearance for immediate high-stiffness operation without requiring complex adjustment during installation.
7006 ACDGB/HCP4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy rotary axes.
- High-Frequency Motors & Spindles: Where extreme rotational speeds and accuracy are required.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other precision instrumentation.
