7006 CD/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7006 CD/P4ADBB Bearing Product Overview & Core Advantages
The 7006 CD/P4ADBB is a precision angular contact ball bearing configured as a duplex back-to-back (DB) matched set. Engineered to P4A tolerance class standards, this bearing delivers exceptional rotational accuracy and dimensional stability. Its primary advantage lies in its ability to handle combined loads—simultaneously supporting substantial radial loads and bidirectional axial loads. The matched DB arrangement provides high system rigidity and excellent operational stability, making it ideal for applications demanding high precision and high rigidity. Preloaded to Light / Class B, it is optimized for precision spindles and other high-performance machinery.
7006 CD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7006 | Basic bearing series and size designation (30mm bore, 55mm OD, 26mm width). |
| C | Designates a 15° contact angle, optimized for high-speed operation and moderate axial loads. |
| D | Indicates the bearing is part of a duplex pair. |
| P4A | Specifies a high-precision tolerance class with enhanced running accuracy and dimensional control. |
| DB | Denotes the Back-to-Back mounting arrangement, which provides high moment rigidity and stable shaft positioning. |
| B | Specifies the Light preload level (Class B), reducing axial and radial play for precise operation. |
7006 CD/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) configuration creates a wide, stable support system that significantly increases moment stiffness. This allows the bearing set to effectively handle combined radial and axial loads from both directions. The 15° contact angle is optimally balanced for high-speed performance and axial load support.
Precision & High-Speed Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The phenolic resin cage offers excellent dimensional stability with low mass, contributing to smooth operation at high rotational speeds. The specified limiting speed of 56,000 rpm makes it suitable for demanding high-speed applications.
Material & Construction Excellence: Both rings and balls are manufactured from high-grade chrome steel, providing excellent wear resistance and fatigue life. The bearing comes pre-lubricated for immediate operation and reliable performance within its specified temperature range of -30°C to 110°C.
7006 CD/P4ADBB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling spindles requiring extreme accuracy and rigidity.
- High-Speed Motors & Spindles: Electric motors, high-frequency spindles, and other rotary systems operating at elevated speeds.
- Precision Instrumentation: Measuring equipment, optical scanners, and laboratory instruments demanding minimal runout.
- Robotics & Automation: Robot arm joints, precision positioning systems, and CNC rotary tables.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
