7009 ACB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7009 ACB/P4A
Basic Information
System of measurement
Metric
Weight
0.26 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
25 °
Ball & Washer Dimensions
Ball diameter
5.556 mm
Ball quantity
25
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2034 lbf
Radial static load rating
1530 lbf
Limiting speed
36 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:
$ 251.72
/ each
In Stock
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7009 ACB/P4A Bearing Product Overview & Core Advantages
The 7009 ACB/P4A is a single-row angular contact ball bearing designed for applications demanding high precision and superior performance under combined loads. Engineered to a P4 (ABEC-7) tolerance class, it offers exceptional running accuracy. Its key advantage lies in its ability to accommodate significant axial loads in one direction, in addition to radial loads, making it ideal for high-speed spindles and other precision machinery. The bearing is pre-lubricated and features a phenolic cage, contributing to its high-speed capability and operational stability.
7009 ACB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7009 | Basic bearing series and size designation (45mm bore, 75mm OD). |
| ACB | Specific internal design and contact angle (25°) optimized for high rigidity and load capacity. |
| P4A | Indicates a P4 (ABEC-7) tolerance class with specific dimensional and running accuracy requirements. |
7009 ACB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The optimized 25° contact angle and robust construction enable the bearing to support substantial combined loads (radial and axial), ensuring stable performance in demanding applications.
- High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces and friction, allowing for a high limiting speed of 36,000 rpm. This makes it a true high-speed bearing.
- Precision Engineering: Manufactured to P4 (ABEC-7) tolerance standards, this bearing guarantees minimal runout and vibration, which is critical for high-precision spindle applications.
- Preload & Matched Arrangement: The bearing is supplied with a preload and is designed as a single unit, simplifying installation and ensuring immediate optimal performance with high rotational accuracy.
7009 ACB/P4A Bearing Typical Application Areas
This precision angular contact bearing is ideally suited for:
- Machine Tool Spindles (e.g., CNC milling, grinding)
- High-Speed Motors and Precision Gearboxes
- Industrial Pumps and Compressors
- Robotics and Automation Equipment
