S7205 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7205 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.13 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
25 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
52 mm
Outside diameter tolerance
-0.007mm to 0
Width
15 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° to 110 °C
Radial dynamic load rating
2925 lbf
Radial static load rating
1564 lbf
Limiting speed
26 X 1000 rpm
Lubrication
Lubricated
Matched arrangement
Single
Preload
Available
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:
$ 167.44
/ each
In Stock
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S7205 ACD/P4A Bearing Product Overview & Core Advantages
The S7205 ACD/P4A is a precision angular contact ball bearing designed for applications demanding high rigidity and exceptional running accuracy. As a single-row bearing, it is optimized to support combined loads—significant radial loads alongside substantial axial loads in one direction. Its P4 (ABEC-7) tolerance class ensures superior dimensional and running accuracy, making it ideal for high-speed spindles and other high-precision machinery. The bearing comes preloaded and lubricated from the factory, offering immediate performance and simplified installation.
S7205 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Advantage |
|---|---|---|
| ACD | 25° Contact Angle, High Rigidity Design | Optimized for high axial load capacity and high rigidity. |
| P4A | P4 (ABEC-7) Tolerance Class | Guarantees extremely tight dimensional tolerances and low runout for high-precision applications. |
S7205 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The 25° contact angle and robust construction enable the bearing to handle high combined loads effectively, providing stable and rigid support for rotating components.
- High-Speed Performance: The lightweight and durable phenolic resin cage ensures excellent guidance and stability at high rotational speeds, contributing to the bearing's high limiting speed of 26,000 rpm.
- Precision Engineering: Manufactured to P4 tolerance class, this bearing offers minimal vibration and noise, which is critical for the accuracy and surface finish in precision machining.
- Preloaded & Ready-to-Use: Supplied with a preload, the bearing achieves optimal stiffness and rotational accuracy immediately upon installation, reducing setup time and complexity.
S7205 ACD/P4A Bearing Typical Application Areas
This bearing is engineered for high-performance applications, including:
- Machine Tool Spindles (e.g., CNC milling and grinding machines)
- High-Speed Motors and Precision Gearboxes
- Medical Equipment and Dental Handpieces
- Aerospace Actuation Systems and Robotic Drives
