7009 CE/HCP4ADT
Hybrid Ceramic Super Precision Bearings
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Part No.
Part No.
7009 CE/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
15 °
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
Price:
$ 371.84
/ each
In Stock
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7009 CE/HCP4ADT Bearing Product Overview & Core Advantages
The 7009 CE/HCP4ADT is a precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This duplex tandem (DT) arrangement bearing set is preloaded and designed to handle primarily axial loads in one direction with high rigidity. Featuring a ceramic ball construction and P4A super-precision tolerance, it delivers superior high-speed capability and extended service life. Its compact design and matched set configuration make it ideal for high-precision spindles and other critical machinery.
7009 CE/HCP4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing series and size designation (45mm bore, 75mm OD). |
| C | Specifies a 15° contact angle, optimized for high-speed operation. |
| E | Indicates a high-capacity internal geometry and optimized design. |
| HC | Signifies the use of Hybrid Ceramic balls (steel rings with ceramic balls). |
| P4A | Denotes a super-precision tolerance class for exceptional running accuracy. |
| DT | Identifies the bearing as part of a Duplex Tandem preloaded set. |
7009 CE/HCP4ADT Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperatures, and enables higher limiting speeds (46,000 rpm). This construction also provides superior resistance to wear and a longer operational life.
- Duplex Tandem (DT) Preload: This matched set arrangement is preloaded to eliminate internal clearance, resulting in exceptional system rigidity and precise axial positioning, which is critical for applications like machine tool spindles.
- Phenolic Resin Cage: The lightweight and robust phenolic cage contributes to smooth operation at high speeds and offers excellent dimensional stability.
- Precision P4A Tolerance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, guaranteeing high rotational accuracy and consistent performance.
- Optimized for High-Speed: The 15° contact angle, hybrid design, and phenolic cage are all engineered to work in unison to deliver outstanding high-speed performance.
7009 CE/HCP4ADT Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications where speed, precision, and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, semiconductor manufacturing equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Aerospace & Defense: Gyroscopes, radar systems, and other precision instrumentation.
