7009 FE/HCP4AH1DBA
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7009 FE/HCP4AH1DBA
Basic Information
System of measurement
Metric
Weight
0.45 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
75 mm
Outside diameter tolerance
-0.004mm to 0
Width
32 mm
Width tolerance
-0.2mm to 0
Contact angle
18 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
21
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4680 lbf
Radial static load rating
3825 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Duplex Back-to-Back (DB)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
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
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7009 FE/HCP4AH1DBA Bearing Product Overview & Core Advantages
The 7009 FE/HCP4AH1DBA is a precision angular contact ball bearing configured as a duplex back-to-back (DB) pair, preloaded to Extra Light (Class A) specifications. Engineered for applications demanding exceptional rotational accuracy and rigidity, this metric system bearing utilizes ceramic balls and a phenolic cage, enabling superior high-speed performance with a limiting speed of 46,000 rpm. Its primary advantage lies in its ability to handle combined loads (radial and axial) simultaneously while maintaining high rigidity and operational stability in demanding environments.
7009 FE/HCP4AH1DBA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| FE | Indicates a specific factory pre-set or internal design configuration for the bearing set. |
| HC | Signifies the use of Hybrid Ceramic components (ceramic balls with steel rings). |
| P4A | Denotes an ultra-high precision tolerance class, exceeding standard ABEC 7/ISO P4 levels for superior running accuracy. |
| H1 | Specifies a particular preload grouping (Extra Light / Class A). |
| DB | Identifies the Duplex Back-to-Back mounting arrangement of the two bearings in the set. |
| A | Confirms the 30° contact angle design (standard for this series). |
7009 FE/HCP4AH1DBA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride (Si3N4) ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends service life, especially at very high speeds.
- Duplex Back-to-Back (DB) Arrangement: This configuration provides high moment rigidity and excellent stability against overturning moments, making it ideal for applications requiring precise shaft positioning.
- Precision & High Rigidity: Manufactured to P4A tolerance class with a controlled 18° contact angle and Class A preload, this bearing set ensures minimal runout, high system stiffness, and dampened vibrations.
- Phenolic Resin Cage: The lightweight and robust phenolic cage contributes to smooth operation at high rotational speeds and offers good dimensional stability.
- Optimized Load Capacity: With a dynamic load rating of 4680 lbf and a static load rating of 3825 lbf, the bearing is capable of handling significant combined radial and axial loads.
7009 FE/HCP4AH1DBA Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Advanced Robotics and Automation Arms
- Aerospace Actuation Systems
- Medical and Dental Drill Handpieces
