6203NR/C3
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6203NR/C3 Bearing Product Overview & Core Advantages
The 6203NR/C3 is a single row deep groove ball bearing engineered for high-performance industrial applications. This metric bearing features an integral snap ring groove on its outer ring, enabling secure axial location within a housing without requiring complex machining. Its defining characteristic is the C3 radial internal clearance, which is larger than standard, making it exceptionally suitable for applications with significant thermal expansion or where interference fits are used. This design ensures reliable operation under demanding conditions, offering robust radial load capacity and stable performance.
6203NR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6203 | Standard bearing series designation, indicating a single row deep groove ball bearing with a 17mm bore, 40mm OD, and 12mm width. |
| NR | Signifies an outer ring with a snap ring groove. This feature allows for simplified axial positioning and secure housing retention. |
| C3 | Indicates a greater than normal radial internal clearance. This is critical for applications involving high speeds, thermal expansion, or heavy interference fits to prevent premature failure. |
6203NR/C3 Bearing Structural Features & Performance Benefits
- Secure Axial Location: The integrated snap ring groove (NR) on the outer ring eliminates the need for complex housing shoulders or end caps, simplifying assembly and reducing overall system cost and size.
- Optimized Internal Clearance: The C3 clearance provides operational stability in environments with elevated temperatures or where press-fits are applied, reducing internal preload and the risk of seizure.
- Robust Load Capacity: Manufactured from high-grade chrome steel for both rings and balls, this bearing delivers a high dynamic load rating of 2147 lbf and a static load rating of 1079 lbf, ensuring durability under significant radial loads.
- High-Speed Capability: With a limiting speed of 17,000 rpm and an open design, it is well-suited for high-speed applications when paired with an appropriate lubrication system.
- Standard Precision: Manufactured to ABEC 1 | ISO P0 tolerance class, providing reliable performance for a wide range of general industrial applications.
6203NR/C3 Bearing Typical Application Areas
The 6203NR/C3 is ideally suited for applications requiring secure mounting and compensation for thermal effects. Common uses include:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Conveyor Systems
- Agricultural Machinery
- Material Handling Equipment
