S7006 CD/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7006 CD/HCP4ADBA Bearing Product Overview & Core Advantages
The S7006 CD/HCP4ADBA is a high-precision, duplex back-to-back angular contact ball bearing designed for demanding applications requiring exceptional rigidity and rotational accuracy. This matched pair bearing set features a P4A super-precision tolerance class and an extra light preload (Class A), making it ideal for spindle systems where minimal runout and high-speed capability are critical. Its duplex DB arrangement provides superior stiffness to handle combined radial and axial loads simultaneously, ensuring stable performance in high-precision machinery.
S7006 CD/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7006 | Bearing series and size designation | Indicates a 30mm bore, 55mm OD, 26mm width bearing. |
| C | 15° contact angle | Optimized for high-speed operation and moderate axial load capacity. |
| D | Duplex arrangement | Two bearings are mounted as a set. |
| DB | Back-to-Back mounting | Provides high moment rigidity and excellent operational stability. |
| HC | Hybrid Ceramic | Features ceramic balls for reduced friction, higher speed, and longer service life. |
| P4A | Tolerance Class | Denotes super-precision dimensional and running accuracy, superior to ABEC 7. |
S7006 CD/HCP4ADBA Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) design creates a wide, rigid support system that effectively resists moment loads and handles significant combined radial and axial loads. The extra light preload eliminates internal clearance, ensuring precise shaft positioning and minimal deflection under load.
Superior High-Speed Performance: The combination of hybrid ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces and friction, enabling a very high limiting speed of 100,500 rpm. The 15° contact angle is optimized for these high rotational speeds.
Sealed & Pre-Lubricated: As a sealed bearing, it is protected from contamination and is pre-lubricated with grease, making it ready for immediate installation and providing long-term, maintenance-free operation within its specified temperature range.
S7006 CD/HCP4ADBA Bearing Typical Application Areas
The S7006 CD/HCP4ADBA is engineered for the most demanding high-speed and high-precision applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and joints.
- High-Frequency Motors & Spindles: Where extreme rotational accuracy and speed are required.
- Advanced Medical Equipment: Dental handpieces and laboratory instrumentation.
- Aerospace & Defense Systems: Gyroscopes, radar systems, and other critical rotating assemblies.
