7004 FEGA/HCP4AH1
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7004 FEGA/HCP4AH1
Basic Information
System of measurement
Metric
Weight
0.056 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
42 mm
Outside diameter tolerance
-0.004mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
6.35 mm
Ball quantity
12
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
1667 lbf
Radial static load rating
754 lbf
Limiting speed
121 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
No drawings available at the moment, will be launched soon
In Stock
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7004 FEGA/HCP4AH1 Bearing Product Overview & Core Advantages
The 7004 FEGA/HCP4AH1 is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This single row bearing features a 15° contact angle and is manufactured to ABEC 7 / P4A tolerance class, ensuring superior running accuracy. Its core advantages include the ability to handle high axial loads in one direction and high-speed operation, facilitated by its ceramic balls and phenolic resin cage. Pre-lubricated and ready for installation, it offers outstanding reliability in precision systems.
7004 FEGA/HCP4AH1 Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| FE | Flush Ground Rings | Enables precise universal matching for optimized preload and stiffness. |
| GA | Light Preload (Class A) | Reduces axial play, improves shaft guidance and system rigidity. |
| HC | Hybrid Ceramic (Silicon Nitride Balls) | Lower density for higher speeds, reduced friction, and longer service life. |
| P4A | High Precision Tolerance Class (ABEC 7) | Guarantees tight dimensional and running accuracy for high-performance applications. |
7004 FEGA/HCP4AH1 Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Design: The combination of chrome steel rings and silicon nitride (ceramic) balls significantly reduces centrifugal forces, allowing for a higher limiting speed of 121,000 rpm. This also results in lower operating temperature and extended lubricant life.
- Phenolic Resin Cage: This lightweight and robust cage material contributes to smooth operation at high speeds and offers excellent dimensional stability.
- Optimized Preload: The extra light preload (Class A) minimizes axial and radial internal clearance, enhancing system rigidity and rotational accuracy without generating excessive heat.
- Universal Matchable Design: The flush ground rings allow this bearing to be universally matched with another identical bearing in a back-to-back (DB) or face-to-face (DF) arrangement to support combined loads and moments.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is critical for high-precision machinery.
7004 FEGA/HCP4AH1 Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Semiconductor Manufacturing Equipment
- Medical and Dental Handpieces
- Aerospace Instrumentation and Gyroscopes
