7009 ACD/P4ATBTA
7000 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7009 ACD/P4ATBTA
Basic Information
System of measurement
Metric
Weight
0.71 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
48 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
9.525 mm
Ball quantity
17
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
13320 lbf
Radial static load rating
14400 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Triplex Back-to-Back (TBT)
Number of bearings in matched set
3
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
Price available upon request.
Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7009 ACD/P4ATBTA Bearing Product Overview & Core Advantages
The 7009 ACD/P4ATBTA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and rigidity. This bearing is supplied as a matched triplex set in a back-to-back (TBT) arrangement, preloaded to Extra Light (Class A) specifications. Its primary advantage lies in its ability to handle combined radial and axial loads simultaneously with high stability, making it ideal for high-speed, high-precision spindles and machinery. The P4A tolerance class ensures superior running accuracy, while the phenolic cage contributes to smooth operation at high rotational speeds.
7009 ACD/P4ATBTA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7009 ACD/P4ATBTA provides detailed technical specifications through its suffixes:
- 7009: Basic bearing series with 45mm bore and 75mm outside diameter.
- ACD: Angular Contact design with a 25° contact angle.
- P4A: Indicates a high-precision tolerance class exceeding standard P4 levels.
- TBT: Denotes a Triplex Back-to-Back matched set of three bearings.
- A: Specifies the Extra Light preload level applied to the matched set.
7009 ACD/P4ATBTA Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The triplex back-to-back arrangement creates an extremely rigid bearing system capable of withstanding significant combined loads and moments. The 25° contact angle is optimized for handling substantial axial loads in both directions.
- High-Speed Performance: The lightweight phenolic resin cage ensures excellent dimensional stability and low friction, enabling the bearing to achieve its high limiting speed of 41,000 rpm. The open design facilitates efficient lubrication and heat dissipation.
- Precision & Accuracy: Manufactured to P4A super-precision tolerance, this bearing guarantees minimal runout and vibration, which is critical for applications requiring ultra-high rotational accuracy.
- Material Quality: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and a long operational lifespan under demanding conditions.
7009 ACD/P4ATBTA Bearing Typical Application Areas
This high-precision, high-speed bearing is primarily used in:
- Machine Tool Spindles: For CNC machining centers, grinding spindles, and milling machines.
- High-Frequency Motors: Where high rotational speeds and precision are paramount.
- Precision Instrumentation: In applications such as coordinate measuring machines and optical scanners.
- Robotic Arm Joints: Providing high rigidity and accuracy for precise movement.
