6311-Z/C3GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
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6311-Z/C3GJN Bearing Product Overview & Core Advantages
The 6311-Z/C3GJN is a single row deep groove ball bearing designed for robust performance in demanding industrial applications. This metric bearing excels in handling radial loads efficiently, making it a fundamental component for a wide range of machinery. Its key advantages include a high radial dynamic load rating of 16,096 lbf, reliable operation up to a limiting speed of 5,600 rpm, and a C3 radial internal clearance suitable for applications with thermal expansion or interference fits. Manufactured from high-grade chrome steel and featuring integral shields, it offers a dependable and durable solution for general industrial use.
6311-Z/C3GJN Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Benefit |
|---|---|---|
| -Z | One Shield (on one side) | Protects bearing from large contaminants while allowing for higher speeds compared to contact seals. |
| /C3 | Greater than normal radial internal clearance | Accommodates thermal expansion in the shaft or housing, preventing preload and potential seizure. |
| GJN | Grease type designation (Polyurea Thickened) | Provides a pre-lubricated, long-service-life solution suitable for the specified temperature range. |
6311-Z/C3GJN Bearing Structural Features & Performance Benefits
- Robust Single Row Design: The deep groove raceway and continuous shoulder design enable smooth operation and efficient handling of high radial loads.
- Shielded Protection: The pressed steel shield (-Z) retains the pre-packed GJN grease and effectively excludes larger particulate contaminants, enhancing bearing life in dirty environments.
- Optimized Internal Clearance: The C3 clearance is engineered for applications where thermal gradients or press-fits are expected, ensuring consistent performance without binding.
- High-Quality Material: All critical components—rings, balls, and cage—are manufactured from chrome steel, providing high hardness, wear resistance, and a long operational lifespan.
- Pre-Lubricated for Service Life: Filled with GJN grease, the bearing is ready for immediate installation and offers maintenance-free operation under normal conditions within its temperature range.
6311-Z/C3GJN Bearing Typical Application Areas
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (conveyors, pulleys)
- Agricultural Machinery
- General Industrial Machinery requiring reliable radial support
