6304-2RSH/GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6304-2RSH/GJN Bearing Product Overview & Core Advantages
The 6304-2RSH/GJN is a single row deep groove ball bearing designed for reliable performance in demanding applications. This metric bearing features integral contact seals (2RS) and is pre-lubricated with a high-performance synthetic hydrocarbon grease (GJN), making it an excellent choice for applications requiring protection from contaminants and long-term, maintenance-free operation. Its robust chrome steel construction ensures durability and a high radial dynamic load rating of 3574 lbf, providing dependable service across a wide temperature range from -30°C to 120°C.
6304-2RSH/GJN Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6304 | Basic series designation for a medium-duty, single row deep groove ball bearing with a 20mm bore. |
| 2RS | Bearing is equipped with contact seals on both sides, providing excellent protection against dust and moisture ingress. |
| H | Indicates that the bearing is filled with a special grease. |
| GJN | Specifies the use of a synthetic hydrocarbon grease with a polyurea thickener, suitable for a wide temperature range and offering good high-speed capability. |
6304-2RSH/GJN Bearing Structural Features & Performance Benefits
- Sealed Design for Contamination Protection: The double-sided contact seals (2RS) effectively shield the internal components from contaminants like dust and dirt, significantly extending bearing service life in harsh environments.
- Optimized Grease for Longevity and Speed: Pre-lubricated with GJN grease, this bearing is ready for immediate use and offers a long relubrication interval, supporting a limiting speed of 14,000 rpm. This makes it suitable for applications where re-lubrication is difficult or impossible.
- Robust Load Capacity: Manufactured from high-grade chrome steel, the bearing delivers a high radial dynamic load rating, ensuring reliable performance under significant radial loads.
- Standard Precision and Clearance: Conforms to ABEC 1 | ISO P0 tolerance class and standard CN radial internal clearance, providing consistent and predictable performance for general industrial applications.
6304-2RSH/GJN Bearing Typical Application Areas
The 6304-2RSH/GJN is ideally suited for a wide range of industrial machinery and equipment where sealed, pre-lubricated bearings are critical. Common applications include:
- Electric Motors (especially fractional horsepower motors)
- Gearboxes and Transmissions
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery
- Industrial Fans and Blowers
- Food Processing and Packaging Machinery (where the specified grease is appropriate)
