S7003 CE/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7003 CE/P4A Bearing Product Overview & Core Advantages
The S7003 CE/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single-row bearing with a 15° contact angle, it is engineered to accommodate high combined loads—significant radial loads alongside substantial unidirectional axial loads. Manufactured to the stringent P4 (ABEC-7) tolerance class, it ensures minimal runout and vibration, making it ideal for high-speed spindles and other high-precision machinery. Its compact bearing dimensions (17mm bore, 35mm OD, 10mm width) allow for space-saving designs without compromising performance.
S7003 CE/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Significance & Benefit |
|---|---|---|
| C | 15° Contact Angle | Optimized balance between radial load capacity and axial load capacity. |
| E | Optimized Internal Design | Enhanced performance through improved internal geometry and material utilization. |
| P4A | Tolerance Class (ABEC-7) | Guarantees extremely tight dimensional and running accuracy for high-precision applications. |
S7003 CE/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row design with a phenolic resin cage and a 15° contact angle provides high rigidity and stable running precision, essential for machine tool spindles.
- Superior Load Capacity: Engineered to handle combined loads effectively. The specific internal geometry allows it to support high radial loads and substantial unidirectional axial loads simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, contributing to a high limiting speed of 63,000 rpm. This makes it a true high-speed bearing.
- Pre-Lubricated & Sealed: The bearing comes lubricated and sealed, protecting against contamination and retaining lubricant. This design supports a wide temperature range from -30°C to 110°C, ensuring reliability in various operating conditions.
S7003 CE/P4A Bearing Typical Application Areas
The S7003 CE/P4A is ideally suited for high-performance applications where precision, speed, and reliability are paramount. Key industries and equipment include:
- Machine Tool Spindles: High-speed machining centers, grinding spindles.
- Precision Instruments: Measuring devices, optical scanners.
- High-Speed Motors & Drives: Servo motors, high-frequency spindles.
- Aerospace & Defense Systems: Gyroscopes, navigation equipment.
