7009 CE/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7009 CE/P4A
Basic Information
System of measurement
Metric
Weight
0.24 kg
Tolerance class
P4 (ABEC-7)
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.006mm to 0
Outside diameter
75 mm
Outside diameter tolerance
-0.007mm to 0
Width
16 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° to 110 °C
Radial dynamic load rating
2925 lbf
Radial static load rating
1912 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
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
Price:
$ 251.24
/ each
In Stock
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7009 CE/P4A Bearing Product Overview & Core Advantages
The 7009 CE/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4 (ABEC-7) tolerance class, it is designed to accommodate combined loads, primarily handling substantial axial loads in one direction while supporting radial loads. Its phenolic resin cage and optimized internal geometry contribute to stable operation at high speeds, making it an ideal solution for machine tool spindles and other precision machinery where high rigidity and low operational noise are critical.
7009 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Standard bore diameter (45 mm) and dimension series. |
| C | Designates a 15° contact angle, optimized for high-speed applications. |
| E | Indicates optimized internal design with increased ball count and size for higher load capacity. |
| P4 | Specifies high-precision tolerance class (equivalent to ABEC-7), ensuring minimal runout and vibration. |
| A | Denotes that the bearing is supplied with a specific preload for enhanced rigidity and precise shaft positioning. |
7009 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row angular contact design with a 15° contact angle and P4 precision provides superior shaft guidance and minimal deflection under load, crucial for high-speed machining.
- Enhanced Load Capacity: The "E" design incorporates a larger ball diameter (7.144 mm) and increased ball quantity (21), significantly boosting both the dynamic and static load ratings.
- Superior High-Speed Performance: The lightweight phenolic cage ensures excellent dimensional stability and low centrifugal forces at the limiting speed of 41,000 rpm, reducing friction and heat generation.
- Optimized for Preload: The "A" suffix indicates the bearing is supplied ready for preload arrangement, eliminating axial play and increasing system natural frequency for improved machining accuracy.
7009 CE/P4A Bearing Typical Application Areas
This bearing is specifically designed for high-performance applications, including:
- Machine Tool Spindles (CNC machining centers, grinding spindles)
- High-Speed Motors and Spindles
- Precision Robotics and Automation Equipment
- Medical and Dental Equipment Spindles
- Aerospace Actuation Systems
