S7006 FEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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S7006 FEGA/HCP4A Bearing Product Overview & Core Advantages
The S7006 FEGA/HCP4A is a super-precision angular contact ball bearing designed for the most demanding high-speed and high-rigidity applications. Engineered to a P4A tolerance class, it delivers exceptional rotational accuracy and dimensional stability. Its key advantage lies in its ability to handle combined loads (radial and axial) simultaneously, making it ideal for precision spindles. The combination of a ceramic ball material and a phenolic cage enables superior high-speed performance and reduced centrifugal forces. This bearing is preloaded and comes as part of a universally matchable (SU) set, ensuring simplified installation and optimal performance.
S7006 FEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
- S7006: Basic model number denoting a 30mm bore, 55mm OD, 13mm width angular contact bearing.
- FE: Indicates a specific internal design, likely pertaining to the contact angle (18°) and optimized internal geometry for high-speed operation.
- GA: Signifies a universally matchable (SU) bearing. "G" typically denotes a preload class (likely Extra light / Class A), and "A" indicates it can be universally paired with another identical bearing in any combination.
- HC: Denotes the use of Hybrid Ceramic balls (Silicon Nitride).
- P4A: The tolerance class, specifying extremely tight dimensional and running accuracy standards superior to ABEC 7.
S7006 FEGA/HCP4A Bearing Structural Features & Performance Benefits
High Rigidity and Load Capacity: The single-row design, combined with the 18° contact angle and Class A preload, provides high axial and radial rigidity, enabling precise shaft positioning and excellent stability under combined loads.
Superior High-Speed Performance: The hybrid ceramic balls are lighter and harder than steel, reducing centrifugal force and wear. The phenolic resin cage is lightweight and possesses excellent slip characteristics, contributing to the high limiting speed of 100,500 rpm.
Extended Service Life and Reliability: The sealed design retains grease and excludes contaminants. The standard grease lubrication and high-quality chrome steel rings ensure reliable operation within a temperature range of -30°C to 110°C.
Precision Engineering: Manufactured to P4A tolerances with tight bore, OD, and width tolerances, this bearing guarantees minimal runout and vibration for ultra-precise applications.
S7006 FEGA/HCP4A Bearing Typical Application Areas
The S7006 FEGA/HCP4A is ideally suited for high-performance machinery requiring extreme precision and speed, including:
- Machine Tool Spindles (High-speed milling, grinding, and drilling)
- Precision Robotics and Automation Arms
- High-Frequency Spindles for PCB drilling and routing
- Aerospace Gyroscopes and Navigation Systems
- Medical Equipment such as dental handpieces and surgical tools
