S6903
S6900 Series Stainless Steel Thin Section Bearings
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Materials
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S6903 Bearing Product Overview & Core Advantages
The **S6903** is a **metric single row deep groove ball bearing** engineered for high-performance applications requiring precision and reliability. Constructed entirely from **stainless steel**, it offers excellent corrosion resistance. This bearing is designed to primarily handle **radial loads** while also accommodating moderate axial loads. Its compact design, featuring a **17 mm bore** and **7 mm width**, makes it ideal for space-constrained assemblies. Manufactured to **ABEC-1 precision** tolerances, it ensures smooth operation and consistent performance, making it a robust choice for various industrial and precision instruments.
S6903 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Indicates the bearing is made from Stainless Steel, providing superior corrosion resistance. |
| 6903 | The standard bearing designation, specifying the bearing dimensions (17mm bore, 30mm OD, 7mm width). |
| Open | Specifies an open (unsealed) design, allowing for custom lubrication schemes but requiring a clean operating environment. |
S6903 Bearing Structural Features & Performance Benefits
- High Precision & Smooth Operation: Manufactured to ABEC-1 tolerance class with a specified radial internal clearance (C0), this bearing ensures low vibration and noise, which is critical for sensitive applications.
- Robust Load Capacity: With a dynamic load rating of 929 lbf and a static load rating of 518 lbf, it provides reliable support for significant radial forces.
- High-Speed Capability: The limiting speed of 19,800 rpm is supported by the optimized single-row deep groove raceway and stainless steel cage, making it suitable for high-velocity spindles and motors.
- Corrosion Resistance: All critical components, including the rings, balls, and cage, are constructed from stainless steel, ensuring long-term performance in harsh or wash-down environments.
- Wide Temperature Range: Operates effectively within a temperature range of -86 to 230 °F, accommodating various operational conditions.
S6903 Bearing Typical Application Areas
- Precision Instruments: Optical encoders, medical devices, and measuring equipment.
- Food & Beverage Processing: Machinery requiring frequent wash-downs and corrosion resistance.
- Small Electric Motors: High-speed spindles in dental handpieces, small fans, and pumps.
- Office Automation Equipment: Printers, scanners, and copiers.
