S7006 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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S7006 CDGA/HCP4A Bearing Product Overview & Core Advantages
The S7006 CDGA/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing features a 15° contact angle and is manufactured to P4A super-precision tolerance standards, ensuring minimal runout and superior rotational accuracy. Its core advantages include the ability to accommodate combined radial and axial loads simultaneously, excellent high-speed capability facilitated by a phenolic cage and ceramic balls, and long service life due to its sealed and pre-lubricated design. It is an ideal choice for high-reliability and high-rigidity spindle arrangements.
S7006 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| S7006 | Basic Bearing Series & Size | Denotes a 30mm bore, 55mm OD, 13mm width bearing from a high-precision series. |
| C | 15° Contact Angle | Optimized for high-speed applications with moderate axial load capacity. |
| DG | Universal Matchable (DU) | The bearing is universal matchable, allowing for flexible mounting in preloaded sets (back-to-back, face-to-face, or tandem) without selective assembly. |
| A | Extra Light Preload | The bearing is supplied with a preload class A (extra light), which minimizes friction and heat generation, ideal for very high speeds. |
| HC | Hybrid Ceramic | Indicates the use of ceramic balls (Silicon Nitride). This provides benefits like lower density, higher stiffness, electrical insulation, and superior performance at high speeds. |
| P4A | Tolerance Class | Specifies a super-precision tolerance grade (equivalent to ABEC 7), ensuring extremely tight dimensional and running accuracy. |
S7006 CDGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends bearing life, especially under high-speed conditions. It also provides electrical insulation.
Phenolic Resin Cage: The lightweight and robust phenolic cage (specified as the cage material) contributes to excellent acceleration and deceleration characteristics, low noise, and smooth operation at the limiting speed of 100,500 rpm.
Preloaded & Sealed Design: Supplied with an extra light preload (Class A), this bearing eliminates internal clearance for enhanced system rigidity and precise rotational accuracy. The sealed construction retains grease and excludes contaminants, ensuring long-term, maintenance-free operation within the specified temperature range of -30°C to 110°C.
High Load Capacity: With a dynamic load rating of 3218 lbf and a static load rating of 1800 lbf, this bearing is capable of handling significant combined loads.
S7006 CDGA/HCP4A Bearing Typical Application Areas
- High-Frequency Machine Tool Spindles: For CNC milling, grinding, and drilling machines where high speed, accuracy, and rigidity are paramount.
- Precision Robotics: Used in high-precision robotic arm joints and actuators.
- High-Speed Motors and Drives: Ideal for the main shafts of high-RPM electric motors and frequency converters.
- Aerospace & Defense Systems: Applied in gyroscopes, radar systems, and other critical navigation and control equipment.
- Medical and Dental Equipment: Suitable for high-speed handpieces and imaging device rotors.
