7006 ACD/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7006 ACD/HCP4AQBCA
Basic Information
System of measurement
Metric
Weight
0.38 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
52 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
8190 lbf
Radial static load rating
6862 lbf
Limiting speed
53 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Quadruplex Back-to-Back (QBC)
Number of bearings in matched set
4
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
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
Price available upon request.
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7006 ACD/HCP4AQBCA Bearing Product Overview & Core Advantages
The 7006 ACD/HCP4AQBCA is a high-precision quadruplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set arrangement features four bearings in a back-to-back (QBC) configuration, providing superior stability and the ability to handle significant combined loads (radial and axial). Manufactured to a P4A tolerance class with a 25° contact angle and ceramic balls, it delivers outstanding performance in high-speed and high-rigidity scenarios, making it an ideal solution for ultra-precise machinery.
7006 ACD/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle. |
| HC | Hybrid Ceramic, indicating the use of ceramic balls for reduced friction and higher speed capability. |
| P4A | High-Precision Tolerance Class, specifying extremely tight dimensional and running accuracy. |
| QBC | Quadruplex Back-to-Back arrangement, a pre-set stack of four bearings for maximum rigidity. |
7006 ACD/HCP4AQBCA Bearing Structural Features & Performance Benefits
- Exceptional Rigidity: The quadruplex back-to-back (QBC) arrangement creates an extremely rigid bearing system, effectively resisting complex moment loads and minimizing shaft deflection under heavy combined loads.
- Superior High-Speed Performance: The combination of ceramic balls (lower density and reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and allows for a high limiting speed of 53,000 rpm.
- High Load Capacity: The angular contact design with a 25° contact angle is optimized to handle substantial radial and axial loads simultaneously.
- Ultra-Precision Operation: Manufactured to P4A tolerance class standards, this bearing ensures minimal runout and vibration, which is critical for maintaining high positional accuracy.
- Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, ensuring optimal performance from initial startup within its specified temperature range.
7006 ACD/HCP4AQBCA Bearing Typical Application Areas
This precision bearing set is ideally suited for high-performance applications, including:
- High-Frequency Machine Tool Spindles
- Precision Grinding Spindles
- High-Speed Robotics and Automation
- Aerospace Actuation Systems
- Advanced Medical and Laboratory Equipment
