S7204 ACD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7204 ACD/P4A
Basic Information
System of measurement
Metric
Weight
0.11 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.005mm to 0
Outside diameter
47 mm
Outside diameter tolerance
-0.006mm to 0
Width
14 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° to 110 °C
Radial dynamic load rating
2565 lbf
Radial static load rating
1260 lbf
Limiting speed
32 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:
$ 119.01
/ each
In Stock
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S7204 ACD/P4A Bearing Product Overview & Core Advantages
The S7204 ACD/P4A is a precision single-row angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Engineered to P4 (ABEC-7) tolerance class, it excels in handling combined radial and axial loads simultaneously. Its key advantages include high-speed capability supported by a phenolic cage and preloaded design, ensuring stable performance and minimal runout in demanding operational environments.
S7204 ACD/P4A Bearing Model Code Explained, Specifications & Naming Convention
The model number S7204 ACD/P4A is decoded as follows:
- S7: High-precision bearing series
- 204: Standard size designation (20mm bore, 47mm OD, 14mm width)
- A: 25° contact angle
- C: Preload specification
- D: High-precision phenolic cage
- P4A: P4 (ABEC-7) tolerance class with specific internal clearance
S7204 ACD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row angular contact design with 25° contact angle provides optimal stiffness for precise shaft positioning. Manufactured to P4 tolerance class, it ensures minimal vibration and superior running accuracy.
- Superior Load Capacity: Engineered to handle significant combined loads with a dynamic load rating of 2565 lbf and static load rating of 1260 lbf.
- High-Speed Performance: The lightweight phenolic cage and optimized internal geometry enable a limiting speed of 32,000 rpm, making it ideal for high-rotation applications.
- Preloaded Design: The preload configuration eliminates internal clearance, providing enhanced system stiffness and improved positional accuracy.
S7204 ACD/P4A Bearing Typical Application Areas
This precision bearing is particularly suited for:
- Machine Tool Spindles
- High-Speed CNC Machining Centers
- Precision Grinding Spindles
- Industrial Robotics
- Medical Equipment
- Aerospace Positioning Systems
