7204 ACD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
7204 ACD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.21 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.004mm to 0
Width
28 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
11
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4185 lbf
Radial static load rating
2520 lbf
Limiting speed
100.5 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Universal Matchable (SU)
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:
$ 95.44
/ each
In Stock
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7204 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7204 ACD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to simultaneously handle combined loads (radial and axial), its universal matchable (SU) design allows for flexible mounting arrangements in pairs. Manufactured to the stringent P4A tolerance class, this bearing delivers superior running accuracy, making it ideal for high-speed spindles and other high-precision machinery. Its compact design, combined with a 25° contact angle, provides excellent operational stability and high rigidity.
7204 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
The model number 7204 ACD/P4ADGA is decoded as follows:
- 7204: Basic series designation for a metric angular contact ball bearing with a 20mm bore.
- AC: Signifies Angular Contact design with a 25° contact angle.
- D: Indicates the bearing is part of a Universal Matchable (SU) pair.
- P4A: Denotes an ultra-precision tolerance class exceeding ABEC 7/ISO P4 standards, ensuring minimal runout and vibration.
- DGA: Specifies a phenolic (polyamide) cage, which is lightweight and ideal for high-speed operation.
7204 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design and universal matching capability enable the bearing to be mounted in pairs (DB, DF, DT) to support substantial combined radial and axial loads from both directions, providing a highly rigid shaft support system.
- Superior High-Speed Performance: The lightweight phenolic cage (DGA) reduces centrifugal forces, while the optimized internal geometry contributes to a high limiting speed of 100,500 rpm, making it a true high-speed bearing.
- Exceptional Precision: Manufactured to P4A tolerance class, this bearing guarantees extreme dimensional and running accuracy, which is critical for applications requiring minimal vibration and high positional accuracy.
- Durable Construction: Components made from chrome steel offer high hardness and fatigue resistance, ensuring a long service life under demanding conditions.
7204 ACD/P4ADGA Bearing Typical Application Areas
This precision bearing is ideally suited for:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Instrumentation: Measuring devices and optical equipment.
- High-Frequency Motors and Spindles
- Medical Equipment and Aerospace Components requiring reliable, high-speed rotation.
