S7203 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S7203 CD/P4A
Basic Information
System of measurement
Metric
Weight
0.065 kg
Tolerance class
P4 (ABEC-7)
Seal type
Sealed
For load direction
Angular Contact
Main Dimensions
Bore diameter
17 mm
Bore diameter tolerance
-0.004mm to 0
Outside diameter
40 mm
Outside diameter tolerance
-0.006mm to 0
Width
12 mm
Width tolerance
-0.2mm to 0
Contact angle
15 °
Ball & Washer Dimensions
Ball diameter
7.144 mm
Ball quantity
10
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
2077 lbf
Radial static load rating
934 lbf
Limiting speed
43 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:
$ 106.57
/ each
In Stock
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S7203 CD/P4A Bearing Product Overview & Core Advantages
The S7203 CD/P4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Engineered to a P4 (ABEC-7) tolerance class, this bearing is preloaded and sealed, making it an ideal solution for machine tool spindles and other high-performance machinery. Its compact design and ability to accommodate combined radial and axial loads provide a robust and space-saving bearing solution.
S7203 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S7 | Series designation for high-precision angular contact bearings. |
| 203 | Standard bore (17 mm), outside diameter (40 mm), and width (12 mm) dimensions. |
| CD | Contact angle designation (15°) and internal design optimized for high rigidity. |
| P4A | Indicates a P4 (ABEC-7) tolerance class with specific running accuracy requirements. |
S7203 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The angular contact design with a 15° contact angle and preload ensures high system stiffness and minimal deflection under load, which is critical for maintaining precision in machining operations.
- Optimized for Combined Loads: This bearing is engineered to support significant combined radial and axial loads simultaneously, making it suitable for complex loading conditions.
- High-Speed Capability: The lightweight phenolic resin cage and precision-ground components contribute to a high limiting speed of 43,000 rpm, enabling smooth operation in high-speed applications.
- Sealed and Lubricated for Life: As a sealed bearing that is pre-lubricated, it is protected from contamination and is designed for long-term, maintenance-free operation within its specified temperature range.
S7203 CD/P4A Bearing Typical Application Areas
This precision bearing is ideally suited for applications where high rotational accuracy and rigidity are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Instrumentation: In medical devices, optical scanners, and measuring equipment.
- High-Frequency Motors and Spindles: Where low vibration and high-speed capability are required.
