6303 ETN9/C3
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Performance
Materials
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6303 ETN9/C3 Bearing Product Overview & Core Advantages
The 6303 ETN9/C3 is a single row deep groove ball bearing engineered for superior performance in demanding applications. This metric bearing is characterized by its ability to accommodate high radial loads and moderate axial loads in both directions. Manufactured with precision tolerances (ABEC 1 | ISO P0), it ensures reliable operation and long service life. Its optimized internal geometry and C3 radial internal clearance make it particularly suitable for applications with thermal expansion or where interference fits are used, providing stable performance across a wide temperature range.
6303 ETN9/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6303 | Basic bearing designation: 17 mm bore, 47 mm OD, 14 mm width |
| E | Optimized internal design for enhanced load capacity |
| TN9 | Nylon cage for reduced weight, lower friction, and superior high-speed performance |
| C3 | Radial internal clearance greater than normal, suitable for applications with thermal expansion or interference fits |
6303 ETN9/C3 Bearing Structural Features & Performance Benefits
High-Performance Materials: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability under demanding operating conditions.
Optimized Cage Design: The TN9 nylon cage offers significant advantages including reduced rotational mass, excellent acceleration characteristics, and quiet operation at high speeds up to 15,000 rpm.
Enhanced Load Capacity: The "E" type design features optimized raceway geometry and ball complement, resulting in increased radial dynamic load rating of 3057 lbf and radial static load rating of 1495 lbf.
Precision Engineering: Manufactured to ABEC 1 | ISO P0 tolerance class, ensuring consistent performance and reliable operation in precision applications.
Flexible Internal Clearance: The C3 clearance provides operational stability in applications subject to thermal expansion or where interference fits are employed.
6303 ETN9/C3 Bearing Typical Application Areas
Electric Motors: Ideal for various motor applications requiring high-speed operation and reliable performance.
Industrial Gearboxes: Suitable for gearbox applications where precision bearings with enhanced load capacity are essential.
Material Handling Equipment: Used in conveyor systems, pumps, and fans requiring durable ball bearings with consistent performance.
Agricultural Machinery: Applied in agricultural equipment where robust bearing performance is critical under varying operational conditions.
General Industrial Machinery: Versatile solution for various industrial applications demanding reliable single row bearings with optimized internal clearance.
