S7003 CEGB/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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S7003 CEGB/P4A Bearing Product Overview & Core Advantages
The S7003 CEGB/P4A is a super-precision double row angular contact ball bearing engineered for applications demanding exceptional rotational accuracy and rigidity. This universally matchable (SU) bearing is designed to accommodate combined loads (radial and bidirectional axial loads) simultaneously, making it ideal for high-speed, high-precision spindles. Its compact design, featuring a 17 mm bore and 35 mm outside diameter, provides a robust and space-efficient solution. Manufactured to the stringent P4A tolerance class, it guarantees superior running accuracy and performance consistency, ensuring high reliability in the most demanding operational environments.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| S7003 | Basic bearing series, indicating a double row angular contact ball bearing with a 17mm bore. |
| C | 15° contact angle. |
| E | Optimized internal design for high-speed operation. |
| GB | Light preload / Class B. |
| P4A | Super-precision tolerance class, exceeding ABEC 7 standards for enhanced running accuracy. |
S7003 CEGB/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The double row design provides superior radial and axial rigidity, enabling stable support for spindles under significant combined loads. The 15° contact angle is optimized to handle bidirectional axial loads efficiently.
- Superior High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio, low friction, and high-speed capability, contributing to the bearing's high limiting speed of 85,000 rpm.
- Precision & Longevity: Manufactured from high-grade chrome steel for rings and balls, and held to P4A tolerances, this bearing ensures minimal vibration, low heat generation, and extended service life.
- Sealed & Pre-Lubricated: The sealed design with factory-applied grease lubrication protects against contamination and provides reliable, maintenance-free operation within a wide temperature range of -30°C to 110°C.
S7003 CEGB/P4A Bearing Typical Application Areas
The S7003 CEGB/P4A is ideally suited for high-performance machinery requiring extreme precision and speed, including:
- Machine Tool Spindles (High-speed machining centers, grinding spindles)
- Precision Instrumentation
- High-Frequency Motors
- Dental Handpieces
- Aerospace Control Systems
