S7011 FE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S7011 FE/HCP4ADT Bearing Product Overview & Core Advantages
The S7011 FE/HCP4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional speed and rigidity. This duplex tandem (DT) matched set features two bearings pre-loaded and paired to handle significant combined loads, including high radial and unidirectional axial loads. Its construction with a ceramic ball and phenolic cage enables superior high-speed performance, while the sealed design and pre-lubrication ensure long-term, maintenance-free operation. This bearing is engineered for high-precision, high-reliability scenarios where maximum system stiffness and rotational accuracy are paramount.
S7011 FE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning | Significance & Advantage |
|---|---|---|
| S7011 | Basic bearing series and size designation. | Defines the core dimensions: 55mm bore, 90mm OD, 36mm width. |
| FE | Hydrodynamic Phenolic Cage. | Optimized for high-speed operation with reduced friction and excellent lubricant distribution. |
| HC | Hybrid Ceramic (Silicon Nitride balls). | Provides lower density, reduced centrifugal force, higher stiffness, and extended service life at high speeds. |
| P4A | High precision tolerance class (equivalent to ABEC 7). | Ensures extremely tight running accuracy for applications demanding minimal vibration and runout. |
| DT | Duplex Tandem arrangement. | Two bearings are matched and pre-loaded to maximize axial load capacity and system rigidity in one direction. |
S7011 FE/HCP4ADT Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex tandem arrangement with a pre-load creates an exceptionally rigid bearing system, capable of handling high combined loads. The 18° contact angle is optimized for supporting substantial axial loads in one direction while maintaining excellent radial load capacity.
Superior High-Speed Performance: The combination of lightweight ceramic balls and a phenolic cage (FE) significantly reduces centrifugal forces and inertial drag. This allows the bearing to achieve a high limiting speed of 46,000 rpm with minimal heat generation and wear.
Precision & Longevity: Manufactured to a P4A tolerance class, this bearing guarantees precise running accuracy. The sealed design protects against contamination, and the pre-applied grease lubrication operates effectively within a temperature range of -30°C to 110°C, ensuring reliable, long-term performance with minimal maintenance.
S7011 FE/HCP4ADT Bearing Typical Application Areas
The S7011 FE/HCP4ADT is ideally suited for high-performance machinery where speed, precision, and rigidity are non-negotiable. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling and routing equipment.
- High-Frequency Motors: Spindles for CNC routers and engraving machines.
- Aerospace & Defense Systems: Gyroscopes, radar equipment, and auxiliary power units.
