6309-2RS1/C4GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6309-2RS1/C4GJN Bearing Product Overview & Core Advantages
The 6309-2RS1/C4GJN is a sealed single row deep groove ball bearing engineered for robust performance in demanding applications. This metric bearing excels at handling radial loads while offering reliable operation across a wide temperature range. Its key advantages include the integration of contact seals (2RS1) for superior contamination exclusion and a greater radial internal clearance (C4) to accommodate thermal expansion in high-temperature environments or heavy-duty applications, ensuring consistent performance and extended service life.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6309 | Basic series designation for a medium-duty, single row deep groove ball bearing with a 45mm bore. |
| 2RS1 | Bearing is fitted with contact seals on both sides. This provides excellent protection against contaminants and retains lubricant. |
| C4 | Specifies a greater radial internal clearance than normal. This is critical for applications involving high thermal gradients or heavy loads to prevent operational issues. |
| GJN | Indicates the bearing is pre-lubricated with a specific, high-quality polyurea grease suitable for the specified temperature range. |
6309-2RS1/C4GJN Bearing Structural Features & Performance Benefits
Sealed & Protected Design: The double-sided contact seals (2RS1) form an effective barrier against dust, moisture, and other contaminants, making the bearing ideal for harsh environments. This design also ensures the pre-loaded polyurea grease is retained for long-term, maintenance-free operation.
Optimized Internal Clearance: The C4 clearance is a defining feature. It allows for thermal expansion of the inner ring and shaft during operation, preventing excessive preload, binding, and premature failure. This is essential for maintaining performance under heavy radial dynamic loads (up to 11915 lbf) and in applications with significant heat generation.
Robust Construction: Manufactured entirely from chrome steel for rings, balls, and cage, this bearing offers high strength, durability, and resistance to wear. Combined with ABEC 1 | ISO P0 tolerance, it delivers reliable and precise rotation for a wide range of industrial uses.
6309-2RS1/C4GJN Bearing Typical Application Areas
The 6309-2RS1/C4GJN is well-suited for a variety of industrial machinery and equipment where reliability and protection are paramount. Common applications include:
- Electric Motors and Gearboxes
- Industrial Fans and Blowers
- Agricultural Machinery (e.g., conveyors, harvesters)
- Material Handling Equipment
- Pumps and Compressors
