7007 FEGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7007 FEGA/HCP4A
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
35 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
62 mm
Outside diameter tolerance
-0.004mm to 0
Width
14 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
2565 lbf
Radial static load rating
1474 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Extra light / Class A
Materials
Ring material
Chrome Steel
Ball material
Ceramic
Cage material
Phenolic
Technical Drawings
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7007 FEGA/HCP4A Bearing Product Overview & Core Advantages
The 7007 FEGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. As a single bearing with an Extra light (Class A) preload, it delivers high running accuracy and rigidity while minimizing friction and heat generation. Its key advantages include the ability to handle combined loads (radial and axial), suitability for high-speed operation up to 56,000 rpm, and universal matchability (SU) for simplified mounting in preloaded pairs. The use of a phenolic cage and ceramic balls further enhances its high-speed capability and durability.
7007 FEGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| FE | Precision design with optimized internal geometry | Enhanced performance and lower noise/vibration. |
| GA | Universal Matchable bearing (SU designation) | Can be paired in any combination to achieve a specific preload without selective mounting. |
| HC | Hybrid Ceramic (Ceramic balls with steel rings) | Higher speed capability, reduced weight, longer service life, and electrical insulation. |
| P4A | High Precision Tolerance Class (superior to ABEC 7) | Exceptional running accuracy and rotational precision for critical applications. |
7007 FEGA/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds and providing non-conductive properties. This results in lower operating temperatures and extended bearing service life.
- Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction at high speeds, contributing to the bearing's overall high-speed performance and smooth operation.
- Precision & Preload: Manufactured to P4A tolerance class with an Extra light preload (Class A), this bearing provides high rotational accuracy, minimal run-out, and immediate high rigidity upon installation, making it ideal for applications with minimal deflection requirements.
- Optimized Internal Geometry (FE): The FE suffix indicates an optimized internal design that improves load distribution and reduces stress, leading to superior performance under combined radial and axial loads.
7007 FEGA/HCP4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles: For milling, grinding, and drilling centers requiring high precision and speed.
- Precision Robotics: In robot arm joints and gears where accuracy, rigidity, and high-speed response are critical.
- Medical Equipment: In high-speed dental handpieces and surgical drill spindles.
- Aerospace & Defense Systems: In gyroscopes, radar systems, and other precision instrumentation.
- High-Frequency Motors and Spindles: Where low friction, high-speed capability, and long life are essential.
