7009 FEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
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7009 FEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7009 FEGA/HCP4AH1 is a single-row angular contact ball bearing engineered for ultra-precision applications requiring exceptional rotational accuracy and high-speed capability. Manufactured to ABEC 7 / P4A tolerance class, it delivers superior running precision. Its ceramic balls and phenolic cage enable outstanding high-speed performance with a limiting speed of 46,000 rpm, while the 18° contact angle provides optimal axial load capacity. This bearing comes prelubricated and is universally matchable (SU), allowing for precise axial preload adjustment when mounted in pairs.
7009 FEGA/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing designation: 45 mm bore, 75 mm OD, 16 mm width |
| FE | Precision ground to P4A tolerance class with enhanced running accuracy |
| GA | Universal Matchable (SU) bearing for paired mounting with controlled preload |
| HC | Hybrid ceramic construction with ceramic balls and steel rings |
| P4A | High precision tolerance class equivalent to ABEC 7 |
| H1 | Extra light preload designation |
7009 FEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, enabling higher rotational speeds while providing excellent electrical insulation and corrosion resistance.
Phenolic Cage Construction: The lightweight phenolic resin cage offers superior strength at high speeds, contributing to the bearing's exceptional limiting speed of 46,000 rpm with minimal friction and excellent dimensional stability.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring consistent performance in demanding applications.
Universal Matching Capability: As a universally matchable (SU) bearing, it can be paired with another identical bearing to create a precisely preloaded duplex set, eliminating the need for selective matching and simplifying installation.
7009 FEGA/HCP4AH1 Bearing Typical Application Areas
- High-speed machine tool spindles for precision machining centers
- Industrial pumps and compressors requiring high-speed operation
- Precision instruments and laboratory equipment
- Semiconductor manufacturing equipment and cleanroom applications
- Aerospace components and navigation systems
- Medical equipment such as dental handpieces and surgical tools
