7006 CD/HCP4ADBB
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7006 CD/HCP4ADBB
Basic Information
System of measurement
Metric
Weight
0.19 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
26 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
5265 lbf
Radial static load rating
3600 lbf
Limiting speed
71.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Light / Class B
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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In Stock
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7006 CD/HCP4ADBB Bearing Product Overview & Core Advantages
The 7006 CD/HCP4ADBB is a precision duplex angular contact ball bearing designed for high-performance applications requiring exceptional rotational accuracy and rigidity. This matched back-to-back arrangement is preloaded to Light / Class B standards, delivering superior system stiffness and precise shaft positioning. Its construction featuring ceramic balls and a phenolic cage enables outstanding high-speed capabilities and thermal stability. This bearing is engineered to handle combined radial and axial loads simultaneously, making it ideal for demanding, high-precision machinery.
7006 CD/HCP4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Duplex bearing in a Back-to-Back (DB) arrangement. |
| HC | Hybrid Ceramic, indicating the use of ceramic balls. |
| P4A | Indicates a high precision tolerance class for superior running accuracy. |
| DBB | Duplex Back-to-Back, confirming the matched set configuration. |
7006 CD/HCP4ADBB Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Stability: The back-to-back duplex design provides a wide effective spread of load centers, significantly increasing moment rigidity and ensuring excellent stability under complex loading conditions.
- Superior High-Speed Performance: The combination of low-density ceramic balls reduces centrifugal forces, while the lightweight phenolic resin cage offers high strength and excellent performance at the limiting speed of 71,500 rpm.
- Enhanced Precision and Life: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration. The 15° contact angle is optimized for high-speed applications requiring a balance of axial and radial load capacity.
- Thermal Advantages: Hybrid ceramic construction provides lower heat generation and reduced thermal expansion compared to all-steel bearings, maintaining preload and accuracy over a wider temperature range (-30°C to 110°C).
7006 CD/HCP4ADBB Bearing Typical Application Areas
This bearing is ideally suited for high-precision, high-speed machinery, including:
- Machine Tool Spindles for milling, grinding, and turning centers
- High-Frequency Motors and spindle drives
- Precision Robotics and automation equipment
- Dental and Medical Handpieces
- Aerospace Instrumentation and auxiliary systems
