6203 ETN9/C4
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6203 ETN9/C4 Bearing Product Overview & Core Advantages
The 6203 ETN9/C4 is a single row deep groove ball bearing designed for high-performance industrial applications. This precision bearing excels in handling significant radial loads while offering moderate axial load capacity. Its defining characteristics include a C4 radial internal clearance for thermal expansion management in demanding conditions and a lightweight Nylon cage (ETN9) enabling high-speed operation. Manufactured to ABEC 1 | ISO P0 tolerance standards, it provides reliable, cost-effective performance in a compact 17mm bore design.
Model Code Breakdown
| Suffix Code | Technical Meaning | Performance Impact |
|---|---|---|
| E | Reinforced Design | Increased load capacity through optimized internal geometry |
| TN9 | Nylon Cage, Glass Fiber Reinforced | Reduced friction, excellent high-speed capability, and corrosion resistance |
| C4 | Greater than Normal Radial Clearance | Accommodates thermal expansion in high-temperature applications |
6203 ETN9/C4 Bearing Structural Features & Performance Benefits
Enhanced Load Capacity: The E-type design features strengthened raceways and larger ball complements, resulting in a radial dynamic load rating of 2147 lbf and static load rating of 1079 lbf, making it suitable for applications with significant radial forces.
High-Speed Performance: The lightweight Nylon TN9 cage minimizes centrifugal forces and reduces friction, enabling operation at limiting speeds up to 17,000 rpm. This makes it ideal for high-rotation applications where traditional steel cages would be limiting.
Thermal Management: The C4 radial clearance provides additional internal space to accommodate shaft and housing expansion under thermal loads, preventing premature failure in applications with operating temperatures up to 120°C.
Open Design Flexibility: As an open bearing without seals, it offers maximum speed capability and allows for customized lubrication schemes tailored to specific application requirements.
6203 ETN9/C4 Bearing Typical Application Areas
- Electric Motors: Main and auxiliary motor shafts requiring high-speed operation and reliable radial load support
- Industrial Gearboxes: Power transmission systems where thermal expansion management is critical
- Material Handling Equipment: Conveyor rollers, pulley systems, and transfer mechanisms
- Agricultural Machinery: Implement drives, PTO shafts, and harvesting equipment
- Industrial Fans & Blowers: High-speed fan shafts and ventilation systems
