7007 FEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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7007 FEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7007 FEGA/HCP4AH1 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single bearing is part of a universally matchable (SU) set, allowing for precise preload configuration when paired with an identical bearing. Its core advantages include superior running accuracy due to its P4A tolerance class, high-speed capability enabled by a phenolic cage and ceramic balls, and the ability to accommodate combined radial and axial loads efficiently with an 18° contact angle. It is pre-lubricated for immediate use and offers reliable operation within a wide temperature range.
7007 FEGA/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7007 | Standard bore diameter (35 mm) and series designation. |
| FE | Designates a universally matchable (SU) bearing. Two bearings can be paired in a duplex set to achieve a specific preload. |
| GA | Indicates a specific preload level, in this case, Extra Light (Class A). |
| HCP4A | Specifies the tolerance class. P4A denotes very high precision for both dimension and running accuracy. |
| H1 | Indicates the bearing is filled with a specific lubricant. |
7007 FEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
High-Precision & Rigidity: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for high-precision spindles. The universal matching (SU) feature allows for high system rigidity when mounted in pairs.
High-Speed Performance: The combination of a lightweight phenolic resin cage and low-density ceramic balls significantly reduces centrifugal forces, enabling a high limiting speed of 56,000 rpm. This makes it an ideal high-speed bearing.
Extended Service Life & Reliability: Ceramic balls offer superior wear resistance, lower thermal expansion, and electrical insulation properties compared to steel. The bearing is pre-lubricated, ensuring immediate and reliable operation from startup.
Load Capacity: The 18° contact angle is optimized to handle combined loads, effectively supporting both radial and axial forces in one compact unit.
7007 FEGA/HCP4AH1 Bearing Typical Application Areas
The 7007 FEGA/HCP4AH1 is engineered for high-performance applications where precision and speed are paramount. Key industries and machinery include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instruments: Measuring and testing equipment.
- High-Frequency Motors and Spindles: PCB drilling spindles and dental handpieces.
- Aerospace & Defense Systems: Gyroscopes and navigation instruments.
