S7006 CD/HCP4ADFB
Hybrid Ceramic Super Precision Bearings
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S7006 CD/HCP4ADFB Bearing Product Overview & Core Advantages
The S7006 CD/HCP4ADFB is a metric duplex pair of Precision Angular Contact Ball Bearings, pre-loaded and matched in a Face-to-Face (DF) arrangement. This configuration is engineered for applications demanding extremely high rigidity and exceptional running accuracy. The combination of a 15° contact angle, ceramic balls, and a P4A super-precision tolerance class enables superior high-speed performance and the capacity to handle significant combined radial and axial loads from both directions. It is a premier choice for the most demanding high-precision, high-reliability spindles and machinery.
S7006 CD/HCP4ADFB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7006 | Basic Bearing Series & Size | Indicates a 30mm bore, 55mm OD, 13mm single width bearing. |
| C | 15° Contact Angle | Optimized for high-speed operation and moderate axial load capacity. |
| D | Duplex Bearing Pair | Two bearings supplied as a matched set. |
| HC | Hybrid Ceramic | Features ceramic balls for reduced friction, lower heat generation, and extended service life at high speeds. |
| P4A | Tolerance Class | Exceeds ABEC 7/ISO P4 standards, indicating ultra-precision dimensions and running accuracy. |
| DF | Face-to-Face Mounting | Pre-loaded arrangement that provides high moment stiffness and accommodates axial loads in both directions. |
| B | Light Preload | Pre-set internal clearance elimination for maximum rigidity and precise shaft positioning under light loads. |
S7006 CD/HCP4ADFB Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Precision: The duplex face-to-face (DF) mounting of two bearings, combined with a light preload (Class B), creates an exceptionally stiff bearing system that minimizes axial and radial deflection, ensuring supreme positional accuracy of the spindle.
Superior High-Speed Capability: The use of silicon nitride ceramic balls significantly reduces centrifugal forces, friction, and operating temperature compared to all-steel bearings. This, paired with the lightweight phenolic resin cage, allows the bearing to achieve its high limiting speed of 100,500 rpm.
Enhanced Load Capacity: The 15° contact angle design is optimized to carry substantial combined loads. The duplex arrangement effectively shares the load, providing high resistance to moment loads and bidirectional axial forces.
Sealed and Lubricated for Life: As a sealed unit pre-lubricated with high-speed grease, the bearing is protected from contamination and is maintenance-free throughout its service life, operating reliably within a temperature range of -30°C to 110°C.
S7006 CD/HCP4ADFB Bearing Typical Application Areas
The S7006 CD/HCP4ADFB is specifically designed for high-performance applications where precision, speed, and rigidity are paramount. Key industries and machinery include:
- High-Frequency CNC Spindles for milling, grinding, and drilling
- Precision Machine Tool Main Spindles
- High-speed Robotic Drives and Servo Motors
- Aerospace instrumentation and auxiliary drives
- Other advanced machinery requiring super-precision, high-speed angular contact bearings.
