7009 CE/P4ADT
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7009 CE/P4ADT
Basic Information
System of measurement
Metric
Weight
0.48 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
Chrome Steel
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 CE/P4ADT Bearing Product Overview & Core Advantages
The 7009 CE/P4ADT is a precision angular contact ball bearing supplied as a matched duplex tandem (DT) set. Engineered to the exacting P4A tolerance class, this bearing is designed for applications demanding exceptional rotational accuracy and rigidity. Its core advantage lies in its ability to handle high axial loads in one direction efficiently, making it an ideal solution for high-speed spindles and precision machinery where uncompromising performance is critical.
7009 CE/P4ADT Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing designation indicating a 45 mm bore, 75 mm OD, and 32 mm width. |
| C | Specifies a 15° contact angle, optimized for high axial load capacity. |
| E | Indicates a reinforced (high-capacity) design with a larger ball complement and optimized internal geometry. |
| P4A | Denotes a high-precision tolerance class with very tight running accuracy limits for bore, outside diameter, and width. |
| DT | Signifies a Duplex Tandem arrangement. Two bearings are mounted together to share the load and increase axial rigidity and load capacity in the same direction. |
7009 CE/P4ADT Bearing Structural Features & Performance Benefits
- High Rigidity & Axial Load Capacity: The duplex tandem (DT) arrangement combines two bearings to create an exceptionally rigid assembly capable of supporting very high unidirectional axial loads. This is critical for minimizing shaft deflection under load.
- Precision Performance: Manufactured to P4A tolerance class, this bearing ensures minimal runout and vibration, which is essential for high-speed and high-precision applications.
- Optimized High-Speed Design: The lightweight phenolic resin cage reduces centrifugal forces, contributing to stable operation at the high limiting speed of 46,000 rpm. The 15° contact angle provides an excellent balance between axial load capacity and speed capability.
- Preload & Matched Set: The bearings are supplied as a pre-configured, preloaded matched set. This eliminates internal clearance, enhances system stiffness from startup, and simplifies installation, ensuring consistent, predictable performance.
7009 CE/P4ADT Bearing Typical Application Areas
This bearing is specifically designed for demanding applications, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers where precision, rigidity, and speed are paramount.
- Precision Spindles: Applications in PCB drilling, semiconductor manufacturing, and other high-accuracy automated equipment.
- High-Frequency Motors: Spindles for routers and other high-RPM electric motors.
- Axial Load-Dominant Systems: Any machinery requiring robust, preloaded support for significant thrust loads in a single direction.
