7009 FE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7009 FE/HCP4ADT
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 Tandem (DT)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Available
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.
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7009 FE/HCP4ADT Bearing Product Overview & Core Advantages
The 7009 FE/HCP4ADT is a precision angular contact ball bearing designed for demanding applications requiring exceptional performance. This duplex tandem (DT) arrangement bearing set is preloaded and manufactured to P4A super-precision tolerance, ensuring high running accuracy and system rigidity. Its combination of a chrome steel ring, ceramic balls, and a phenolic cage enables superior high-speed capabilities and extended service life, making it ideal for machine tool spindles and other high-precision machinery.
7009 FE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing series and size designation (45mm bore, 75mm OD). |
| FE | Indicates a specific internal design and preload level for the duplex tandem arrangement. |
| HC | Hybrid Ceramic: Denotes the use of ceramic balls for reduced friction, higher speed, and longer life. |
| P4A | The tolerance class, signifying super-precision levels for dimensional and running accuracy. |
| DT | Duplex Tandem: Specifies that two bearings are matched and preloaded in a tandem configuration to handle heavy axial loads in one direction. |
7009 FE/HCP4ADT Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The duplex tandem arrangement and factory-applied preload create an exceptionally stiff bearing system, capable of handling significant axial loads. The 18° contact angle is optimized for this load direction.
- Superior High-Speed Performance: The combination of lightweight phenolic resin cage and low-density ceramic (Si3N4) balls reduces centrifugal forces, enabling a high limiting speed of 46,000 rpm. This hybrid construction also minimizes heat generation.
- Enhanced Durability and Precision: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration. The ceramic balls are non-conductive and resistant to wear, offering excellent performance in challenging environments.
- Optimized for Precision Systems: The bearings are supplied as a pre-lubricated, matched set, ensuring consistent performance and simplifying installation in high-precision assemblies.
7009 FE/HCP4ADT Bearing Typical Application Areas
The 7009 FE/HCP4ADT is engineered for high-performance applications where precision, speed, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: High-accuracy robotic arms and machining cells.
- High-Frequency Motors and Spindles: Motors for PCB drilling and other high-RPM applications.
- Aerospace and Defense Systems: Gyroscopes, navigation systems, and other critical instrumentation.
