6203-2ZNR/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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6203-2ZNR/C3 Bearing Product Overview & Core Advantages
The 6203-2ZNR/C3 is a single row deep groove ball bearing designed for exceptional performance in demanding applications. This metric bearing features integrated shields (2Z) for contamination protection and a snap ring groove (NR) on its outer ring for secure axial location within a housing. Its C3 radial internal clearance makes it particularly suitable for applications with thermal expansion or where interference fits are used, ensuring reliable operation. The combination of high radial load capacity and robust construction provides a compact, durable solution for a wide range of industrial machinery.
6203-2ZNR/C3 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 6203 | Basic bearing designation (17mm bore, 40mm OD, 12mm width) | Standardized dimensions for easy interchangeability. |
| 2Z | Non-contact steel shields on both sides | Effective protection against contaminants with minimal friction increase. |
| NR | Snap ring groove on the outer ring | Simplifies housing design and provides secure axial location. |
| /C3 | Greater than normal radial internal clearance | Accommodates thermal expansion and interference fits, preventing preload. |
6203-2ZNR/C3 Bearing Structural Features & Performance Benefits
- Shielded Design for Enhanced Protection: The non-contact steel shields (2Z) effectively seal the bearing against dust and other particulates, extending service life without significantly impacting the limiting speed of 17,000 rpm.
- Snap Ring Groove for Secure Mounting: The outer ring snap ring groove allows for the use of a retaining ring, providing a cost-effective and space-saving method for axial location, increasing mounting rigidity.
- Optimized Internal Clearance: The C3 radial clearance is a key feature for applications prone to thermal gradients or where press-fits are used, ensuring smooth operation and preventing binding.
- Robust Material Construction: Manufactured from chrome steel for rings, balls, and cage, this bearing offers high strength, durability, and resistance to wear.
- High Load Capacity: With a dynamic load rating of 2147 lbf and a static load rating of 1079 lbf, it is engineered to handle significant radial loads in compact envelopes.
6203-2ZNR/C3 Bearing Typical Application Areas
The 6203-2ZNR/C3 is ideally suited for a variety of industrial applications where reliable performance, contamination protection, and ease of installation are critical. Common uses include:
- Electric Motors and Small Gearboxes
- Industrial Fans and Blowers
- Conveyor Systems and Material Handling Equipment
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
