S7209 ACDGA/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7209 ACDGA/P4A
Basic Information
System of measurement
Metric
Weight
0.42 kg
Tolerance class
P4A
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
45 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
85 mm
Outside diameter tolerance
-0.004mm to 0
Width
19 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
12.7 mm
Ball quantity
14
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
9225 lbf
Radial static load rating
6750 lbf
Limiting speed
46 X 1000 rpm
Lubrication
Grease
Matched arrangement
Single
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
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
Price:
$ 150.43
/ each
In Stock
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S7209 ACDGA/P4A Bearing Product Overview & Core Advantages
The S7209 ACDGA/P4A is a metric double row angular contact ball bearing engineered for applications demanding high precision and exceptional rigidity. Its design is optimized to simultaneously support substantial combined loads (radial and bidirectional axial loads), making it an ideal choice for high-performance machinery. Manufactured to the stringent P4A tolerance class and featuring a sealed construction with pre-lubrication, this bearing offers reliable, long-term operation in demanding environments, eliminating the need for frequent re-lubrication.
S7209 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7209 ACDGA/P4A provides detailed technical specifications. Here is a breakdown:
- S7: Indicates a series of high-precision, high-rigidity double row angular contact ball bearings.
- 209: Denotes the standard size series; 45mm bore, 85mm outside diameter, 19mm width.
- A: Signifies a 25° contact angle, optimized for carrying higher axial loads.
- CDGA: Specifies the internal design and cage type. C indicates a specific internal geometry, and Phenolic is the cage material, which contributes to low friction and high-speed capability.
- P4A: Represents the tolerance class, equivalent to ABEC 7 precision, ensuring extremely tight dimensional and running accuracy for superior performance.
S7209 ACDGA/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row ball design provides superior radial and axial stiffness, enabling the bearing to handle significant combined loads without excessive deflection. The 25° contact angle is specifically engineered for efficient axial load support from both directions.
- Precision & High-Speed Performance: Built to P4A super-precision standards, this bearing ensures minimal vibration and run-out. The lightweight phenolic cage and optimized internal geometry allow for a high limiting speed of 46,000 rpm, making it suitable for high-speed applications.
- Sealed & Maintenance-Free Operation: The integral seals protect against contamination and retain the factory-applied grease lubrication. This sealed design ensures consistent performance and a long service life, reducing maintenance requirements.
- Universal Matching: Designated as Universal Matchable (SU), these bearings can be universally paired in any combination to create precisely preloaded sets, simplifying installation and ensuring optimal system performance.
S7209 ACDGA/P4A Bearing Typical Application Areas
The S7209 ACDGA/P4A is designed for high-precision, high-speed rotational systems. Key applications include:
- Machine Tool Spindles: For milling, grinding, and turning centers requiring high rigidity and accuracy.
- Precision Gearboxes and High-Frequency Motors.
- Industrial Pumps and Compressors.
- Medical Equipment and Analytical Instruments.
