S7006 ACD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7006 ACD/HCP4A Bearing Product Overview & Core Advantages
The S7006 ACD/HCP4A is a high-precision, single-row angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to accommodate combined loads, it efficiently supports significant radial loads alongside substantial axial loads in one direction. Its key advantages include superior high-speed capability enabled by a phenolic cage and ceramic balls, and high rigidity for stable operation. The bearing comes pre-lubricated and sealed, ensuring long-term performance and simplifying installation in precision assemblies.
S7006 ACD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7006 | Basic bearing series and size designation | Defines the core bearing dimensions: 30mm bore, 55mm OD, 13mm width. |
| AC | Angular Contact design | Optimized geometry for handling combined radial and axial loads. |
| D | High Contact Angle (25°) | Provides higher axial load capacity. |
| HC | Hybrid Ceramic (Ceramic balls, Steel rings) | Enables higher speeds, reduced friction, and longer service life. |
| P4 | Tolerance Class (ABEC-7) | Guarantees ultra-high precision and running accuracy for demanding applications. |
S7006 ACD/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and provides electrical insulation, making this an ideal high-speed bearing.
Phenolic Resin Cage: This lightweight and robust cage material contributes to the high limiting speed (34,000 rpm) and offers excellent dimensional stability under high rotational forces.
25° Contact Angle & Preload: The steep contact angle is optimized for high axial load capacity. The bearing is supplied with a light preload, ensuring immediate high rigidity and precise shaft positioning with minimal runout.
Sealed & Lubricated Design: The integral seals protect against contamination, and the factory-applied high-performance grease ensures reliable operation across the specified temperature range (-30°C to 110°C), offering a maintenance-free solution.
S7006 ACD/HCP4A Bearing Typical Application Areas
The S7006 ACD/HCP4A is engineered for high-performance applications where precision, speed, and reliability are critical. Common uses include:
- High-Frequency Machine Tool Spindles: For CNC milling, grinding, and drilling centers.
- Precision Robotics: Arm joints and high-accuracy gearboxes.
- High-Speed Motors and Turbines: Especially where electrical insulation is beneficial.
- Medical and Dental Equipment: High-speed handpieces and scanners.
- Aerospace Actuation Systems: Flight control mechanisms and auxiliary power units.
