6203-2RSH/C3 GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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Main Dimensions
Performance
Materials
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6203-2RSH/C3 GJN Bearing Product Overview & Core Advantages
The 6203-2RSH/C3 GJN is a sealed single row deep groove ball bearing designed for reliable performance in demanding applications. Engineered to primarily handle radial loads, it also accommodates moderate axial loads in both directions. Its key advantages include a robust sealed construction for contaminant exclusion, an optimized C3 radial internal clearance for thermal expansion management, and compliance with international standards including ROHS and REACH. This bearing offers a compact, versatile, and long-lasting solution for a wide range of industrial machinery.
6203-2RSH/C3 GJN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 6203 | Standard bearing series designation (17mm bore, 40mm OD) | Defines core dimensions and load capacity. |
| 2RS | Contact seals on both sides | Provides superior protection against contaminants and moisture ingress, retaining lubrication. |
| H | Enhanced seal design | Improved sealing performance and service life. |
| /C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in applications with high operating temperatures or heavy loads, preventing premature failure. |
| GJN | Grease type and fill quantity designation | Specifies a high-performance, lithium soap-based grease suitable for the specified temperature range. |
6203-2RSH/C3 GJN Bearing Structural Features & Performance Benefits
Robust Sealed Construction: The double-contact seals (2RSH) are integrally molded, providing an effective barrier against dust, dirt, and moisture. This design ensures the integrity of the pre-applied GJN grease, leading to reduced maintenance requirements and extended bearing service life.
Optimized Internal Clearance: The C3 radial clearance is a critical feature for applications prone to thermal expansion, such as electric motors or gearboxes. This clearance prevents internal preloading, which can cause excessive friction, heat buildup, and ultimately, bearing seizure.
High-Quality Material & Precision: Manufactured from chrome steel for both rings and balls, this bearing ensures high strength and durability. Its ABEC 1 | ISO P0 tolerance class guarantees consistent performance and smooth operation, making it a reliable precision bearing for general industrial use.
Balanced Performance: With a dynamic load rating of 2147 lbf and a limiting speed of 17,000 rpm, it offers an excellent balance of load capacity and rotational speed for its size, suitable for a variety of demanding conditions.
6203-2RSH/C3 GJN Bearing Typical Application Areas
The 6203-2RSH/C3 GJN is a versatile component widely used across numerous industries due to its sealed and robust design. Key application areas include:
- Electric Motors: Ideal for main shafts in small to medium-sized AC/DC motors, where sealed protection is essential.
- Industrial Gearboxes and Transmissions: Provides reliable support in gearbox assemblies, handling radial loads and moderate speeds.
- Pumps and Compressors: Used in various pump types to support impeller shafts, benefiting from the seal's protection against fluid and particulate contamination.
- Material Handling Equipment: Found in conveyor rollers, pulleys, and fans.
- Agricultural Machinery: Suitable for applications in harsh environments where dust and moisture are prevalent.
