6304-2Z/C3GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6304-2Z/C3GJN Bearing Product Overview & Core Advantages
The 6304-2Z/C3GJN is a single row deep groove ball bearing engineered for high performance in demanding applications. Its core advantage lies in its ability to efficiently handle radial loads while accommodating moderate axial loads in both directions. Featuring integral shielded protection and a C3 radial internal clearance, this bearing is designed for robust operation, offering reliable service in a wide temperature range from -30°C to 120°C. Its precision construction to ABEC 1 | ISO P0 tolerance ensures smooth running and long service life, making it a versatile and dependable component for industrial machinery.
6304-2Z/C3GJN Bearing Model Code Explained, Specifications & Naming Convention
- 6304: Basic model number indicating a metric, single row deep groove ball bearing with a 20mm bore, 52mm OD, and 15mm width.
- 2Z: Signifies that the bearing is shielded on both sides. This provides effective protection against contamination while allowing for high-speed operation.
- C3: Denotes a greater than normal radial internal clearance. This is ideal for applications with thermal expansion, such as in electric motors, or where interference fits are used.
- GJN: Indicates the use of a specific, high-quality polyurea grease. This lubrication is suitable for the specified temperature range and contributes to the bearing's long-term, maintenance-free performance.
6304-2Z/C3GJN Bearing Structural Features & Performance Benefits
The performance of the 6304-2Z/C3GJN is a direct result of its thoughtful design. The single row deep groove raceway and high-quality chrome steel construction provide excellent radial load capacity and durability. The shielded (2Z) design effectively retains the grease and excludes larger contaminants, significantly enhancing operational reliability. The C3 clearance is a critical feature that prevents excessive preload and potential seizure in applications subject to thermal gradients or press-fits. Combined with the specialized GJN grease, this bearing is optimized for a high limiting speed of 14,000 rpm and offers a long, maintenance-free service interval.
6304-2Z/C3GJN Bearing Typical Application Areas
This bearing's combination of speed, clearance, and sealed lubrication makes it suitable for a wide array of industrial applications. Common uses include:
- Electric Motors and Gearboxes
- Pumps and Compressors
- Material Handling Equipment (e.g., conveyor systems)
- Agricultural Machinery
- Industrial Fans and Blowers
