6309-2RS1NR/C3 GJN
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6309-2RS1NR/C3 GJN Bearing Product Overview & Core Advantages
The 6309-2RS1NR/C3 GJN is a metric single row deep groove ball bearing engineered for exceptional reliability in demanding applications. This sealed bearing is characterized by its ability to handle significant radial loads and moderate axial loads in both directions. Its core advantages include the integration of contact seals (2RS1) for superior contamination exclusion, a snap ring groove (NR) on the outer ring for simplified axial location, and an optimized C3 radial internal clearance for stable operation under thermal gradients. Designed with ABEC 1 (ISO P0) precision, it offers a robust and cost-effective solution for a wide range of industrial machinery.
Model Code Breakdown
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| 6309 | Basic series designation for a medium-duty, single row deep groove ball bearing. | Standardized dimensions and proven performance. |
| 2RS1 | Bearing is fitted with two-sided contact seals made from NBR rubber. | Provides excellent protection against contaminants and retains lubricant, enhancing service life. |
| NR | Outer ring has a snap ring groove. | Facilitates secure axial location within a housing without complex machining, simplifying assembly. |
| C3 | Specifies a greater than normal radial internal clearance. | Ideal for applications with expected thermal expansion, preventing preload and ensuring smooth operation. |
| GJN | Indicates the bearing is pre-lubricated with a polyurea-based grease. | Offers a wide operating temperature range (-30°C to +120°C) and long-term lubrication, making it ready-to-install and maintenance-free. |
6309-2RS1NR/C3 GJN Bearing Structural Features & Performance Benefits
Robust Construction: Manufactured entirely from chrome steel for rings, balls, and cage, this bearing ensures high strength, wear resistance, and durability under dynamic radial loads up to 11,915 lbf.
Enhanced Sealing & Lubrication: The 2RS1 contact seals effectively shield the internal components from dust, moisture, and other contaminants. Combined with the GJN polyurea grease, this creates a sealed-for-life system, significantly reducing maintenance requirements and extending bearing service life.
Simplified Mounting: The presence of the snap ring groove (NR) on the outer ring allows for a secure and straightforward axial fixation within a housing, eliminating the need for complex end caps or press fits in many designs.
Optimized Internal Clearance: The C3 clearance is engineered to accommodate shaft and housing fits, as well as operational heat generation, preventing binding and ensuring reliable performance.
6309-2RS1NR/C3 GJN Bearing Typical Application Areas
The 6309-2RS1NR/C3 GJN is ideally suited for a broad spectrum of industrial applications where reliability, contamination protection, and ease of installation are paramount. Key sectors include:
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Equipment (e.g., conveyor pulleys)
- Agricultural Machinery
- Pumps and Fans
- General Industrial Machinery requiring robust, sealed bearing solutions.
