6305-RS1/C3GJN7
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6305-RS1/C3GJN7 Bearing Product Overview & Core Advantages
The 6305-RS1/C3GJN7 is a single row deep groove ball bearing designed for robust performance in demanding applications. Engineered with metric dimensions and constructed entirely from chrome steel, this bearing delivers reliable operation and long service life. A key feature is its sealed design (RS1) which effectively protects against contamination, making it suitable for environments where dirt or moisture is present. The bearing is pre-set with a C3 radial internal clearance, making it ideal for applications with expected thermal expansion or where interference fits are used. Its combination of a high dynamic load rating and sealed construction provides an excellent balance of durability and maintenance-free operation.
6305-RS1/C3GJN7 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6305 | Basic bearing series; indicates a medium series deep groove ball bearing with a 25mm bore diameter, 62mm outside diameter, and 17mm width. |
| RS1 | Contact seal on one side. This synthetic rubber seal provides superior protection against contaminants compared to non-contact shields, ensuring longer lubricant life and reduced maintenance. |
| C3 | Radial internal clearance greater than Normal (C0). This clearance is selected for applications where thermal expansion of the shaft and housing is expected, or where tight interference fits are used, preventing excessive preload and overheating. |
| GJN7 | Indicates the bearing is supplied without lubrication ("None"). This allows the end-user to apply a lubricant specific to their application's speed, temperature, and environmental requirements. |
6305-RS1/C3GJN7 Bearing Structural Features & Performance Benefits
- Sealed for Protection: The RS1 contact seal is a critical structural feature that effectively excludes contaminants like dust and moisture. This significantly extends bearing life by preserving the integrity of the lubricant and rolling contact surfaces, making it a maintenance-friendly solution.
- Optimized Internal Clearance: The C3 clearance is a performance-enhancing feature. It accommodates dimensional changes from thermal expansion in the system, preventing binding and reducing friction and heat generation under normal operating conditions. This contributes to stable and reliable performance.
- Robust Load Capacity: Manufactured from high-grade chrome steel for both rings and balls, the bearing achieves a high dynamic load rating of 4631 lbf. This enables it to handle significant radial loads and moderate axial loads in both directions, providing versatile load-carrying capability.
- Precision & Consistency: Produced to ABEC 1 | ISO P0 tolerance class, this bearing ensures consistent dimensional accuracy and running performance, which is essential for smooth operation and reduced vibration in a wide range of machinery.
6305-RS1/C3GJN7 Bearing Typical Application Areas
The 6305-RS1/C3GJN7 is a versatile component suited for various industrial sectors. Its sealed and robust design makes it ideal for:
- Electric Motors: Used in industrial fans, pumps, and compressors where protection from airborne contaminants is necessary.
- Material Handling Equipment: Conveyor rollers and pulley systems benefit from its sealed construction and ability to handle radial loads.
- Agricultural Machinery: Implements and equipment operating in dusty or dirty environments.
- General Industrial Machinery: Gearboxes, drives, and other machinery requiring a reliable, standard-sized ball bearing with built-in contamination protection.
