7009 CD/P4ADFAGMM
7000 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7009 CD/P4ADFAGMM
Basic Information
System of measurement
Metric
Weight
0.47 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
9.525 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
10530 lbf
Radial static load rating
10125 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Grease
Matched arrangement
Duplex Face-to-Face (DF)
Number of bearings in matched set
2
Universal matching bearing
No (Standard)
Preload
Extra light / Class A
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
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7009 CD/P4ADFAGMM Bearing Product Overview & Core Advantages
The 7009 CD/P4ADFAGMM is a duplex pair of precision angular contact ball bearings in a Face-to-Face (DF) arrangement. Engineered for the most demanding applications, this matched set is characterized by its P4A super-precision tolerance and extra light preload (Class A). Its primary advantage lies in its ability to provide exceptionally high rigidity and stable rotational accuracy while accommodating combined radial and axial loads. This makes it an ideal solution for spindles and other high-precision, high-speed machinery requiring maximum operational reliability.
7009 CD/P4ADFAGMM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Standard bearing series number, indicating a 45 mm bore, 75 mm OD. |
| C | 15° contact angle, optimized for carrying combined loads. |
| D | Indicates a duplex pair (two bearings supplied as a set). |
| P4A | Super-precision tolerance class, exceeding ABEC 7 standards for exceptional running accuracy. |
| DF | Face-to-Face arrangement. This configuration provides high moment stiffness and is less sensitive to misalignment. |
| A | Specifies Extra Light Preload (Class A), minimizing friction and heat generation for higher limiting speeds. |
| GMM | Indicates the bearings are pre-lubricated with a standard grease fill. |
7009 CD/P4ADFAGMM Bearing Structural Features & Performance Benefits
- Duplex DF Arrangement & High Rigidity: The two bearings are universally matched and mounted in a Face-to-Face (DF) configuration. This structure significantly increases system rigidity and provides excellent resistance to overturning moments, ensuring stable shaft positioning under complex loads.
- Superior Load Capacity: The 15° contact angle and duplex design enable the bearing set to efficiently handle combined radial and axial loads from both directions simultaneously.
- Optimized for High-Speed Operation: The combination of a lightweight phenolic cage, extra light preload, and precision grinding allows for a high limiting speed of 46,000 rpm, making it suitable for high-speed spindles.
- Pre-Configured Precision: Supplied as a factory-matched set with P4A tolerances and preload, this eliminates the need for complex on-site adjustment, guaranteeing immediate, optimal performance and simplifying installation.
7009 CD/P4ADFAGMM Bearing Typical Application Areas
This precision duplex bearing set is specifically designed for high-performance machinery where accuracy, speed, and rigidity are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Spindles: PCB drilling, engraving, and high-frequency motor spindles.
- Robotics: High-accuracy rotary joints and arm actuators.
- Medical Equipment: Dental handpieces and surgical drill spindles.
