7205 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.
7205 ACD/P4ADGA
Basic Information
System of measurement
Metric
Weight
0.26 kg
Tolerance class
P4A
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
52 mm
Outside diameter tolerance
-0.004mm to 0
Width
30 mm
Width tolerance
-0.2mm to 0
Contact angle
25 °
Ball & Washer Dimensions
Ball diameter
7.938 mm
Ball quantity
13
Performance
Temperature range
- 30°C to 110 °C
Radial dynamic load rating
4770 lbf
Radial static load rating
3082 lbf
Limiting speed
71.5 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:
$ 115.01
/ each
In Stock
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7205 ACD/P4ADGA Bearing Product Overview & Core Advantages
The 7205 ACD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. As a universal matchable (SU) bearing supplied in a pre-lubricated and open configuration, it is engineered to accommodate combined loads, providing high rigidity and reliable operation. Its P4A tolerance class and extra light preload (Class A) make it ideal for high-precision spindles and other critical machinery where minimal runout and superior rotational accuracy are paramount.
7205 ACD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix | Technical Meaning |
|---|---|
| ACD | Angular Contact Design with a 25° contact angle, optimized for high-speed operation and radial and axial load capacity. |
| P4A | Indicates a high-precision tolerance class with strict limits on bore, outside diameter, and width deviations, ensuring exceptional running accuracy. |
| DGA | Universal Matchable (SU) bearing. Two bearings are supplied as a matched set that can be arranged in back-to-back (DB), face-to-face (DF), or tandem (DT) configurations to meet specific application rigidity and load requirements. |
7205 ACD/P4ADGA Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The angular contact design with a 25° contact angle enables the bearing to support significant combined radial and axial loads simultaneously. The universal matchable feature allows for the creation of pre-loaded bearing pairs, further enhancing system stiffness.
- Superior High-Speed Performance: The lightweight phenolic cage minimizes centrifugal forces, contributing to a high limiting speed of 71,500 rpm. The open design facilitates efficient lubrication management for cool running at high velocities.
- Precision Engineering: Manufactured to P4A tolerance class, this bearing guarantees minimal dimensional variation and superior running accuracy, which is critical for applications like machine tool spindles.
- Optimized Internal Geometry: With 13 precision balls of 7.938 mm diameter and high-grade chrome steel construction, the bearing delivers consistent performance, long service life, and high dynamic load capacity (4770 lbf).
7205 ACD/P4ADGA Bearing Typical Application Areas
This bearing is ideally suited for high-performance applications, including:
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Aerospace Control Systems
