7209 ACD/P4ADGC
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Part No.
Part No.
7209 ACD/P4ADGC
Basic Information
System of measurement
Metric
Weight
0.82 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
85 mm
Outside diameter tolerance
-0.004mm to 0
Width
38 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
14918 lbf
Radial static load rating
13500 lbf
Limiting speed
41 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
Number of bearings in matched set
2
Universal matching bearing
Universal Matchable (SU)
Preload
Moderate / Class C
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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7209 ACD/P4ADGC Bearing Product Overview & Core Advantages
The 7209 ACD/P4ADGC is a precision double row angular contact ball bearing engineered for applications demanding exceptional accuracy and rigidity. Its design enables it to simultaneously support substantial combined loads (radial and bidirectional axial loads) efficiently. Manufactured to the stringent P4A tolerance class and featuring a universal matchable (SU) designation, this bearing offers superior running accuracy and is ideal for high-precision, high-reliability systems where compact design and high rigidity are critical.
7209 ACD/P4ADGC Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| ACD | Optimized internal geometry with a 25° contact angle for enhanced axial load capacity. |
| P4A | Indicates a high-precision tolerance class with very tight running accuracy limits for the inner and outer rings. |
| DGC | Signifies a Moderate preload (Class C) applied to the bearing, increasing system stiffness and minimizing deflection under load. |
7209 ACD/P4ADGC Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides a robust, compact solution that delivers significantly higher rigidity and load-carrying capacity compared to single row bearings. It is expertly designed to handle demanding combined loads.
- Precision & Speed Performance: Built to P4A precision standards with a phenolic cage, this bearing ensures smooth operation, reduced vibration, and is capable of high rotational speeds, with a limiting speed of 41,000 rpm.
- Universal Matchability: Designated as Universal Matchable (SU), these bearings can be mounted in pairs (tandem, back-to-back, or face-to-face) without selective matching, simplifying installation and achieving the desired preload or rigidity.
- Optimized Material Selection: The use of chrome steel for rings and balls, combined with a lightweight phenolic cage, ensures high durability, excellent wear resistance, and reliable performance across a temperature range of -30°C to 110°C.
7209 ACD/P4ADGC Bearing Typical Application Areas
This bearing is ideally suited for high-performance machinery where precision and stiffness are non-negotiable. Key applications include:
- Machine Tool Spindles
- High-Speed Precision Spindles
- Industrial Pumps and Compressors
- Robotic Arms and Precision Gearboxes
- Medical and Laboratory Equipment
