6311-2Z/C4GJN
6000, 6200 & 6300 Series Metric Standard Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
6311-2Z/C4GJN Bearing Product Overview & Core Advantages
The 6311-2Z/C4GJN is a single row deep groove ball bearing designed for robust performance in demanding applications. Its key advantage lies in its ability to efficiently handle radial loads while offering operational reliability. The bearing features shielded construction on both sides, providing effective protection against contaminant ingress. Pre-lubricated for long service life, it is an ideal choice for applications requiring a balance of performance, durability, and value, making it a versatile component in various industrial machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 6311 | Basic bearing series, indicating a metric single row deep groove ball bearing with a 55mm bore, 120mm OD, and 29mm width. |
| 2Z | Signifies bearings with shields on both sides. This provides good protection against large particles while allowing for higher rotational speeds compared to contact seals. |
| C4 | Indicates a greater than normal radial internal clearance. This is suitable for applications with significant thermal expansion or where shaft and housing fits result in a reduction of internal clearance. |
| GJN | Specifies the lubrication. "GJN" denotes a polyurea-thickened grease with a standard temperature range, offering good stability and long-term performance. |
6311-2Z/C4GJN Bearing Structural Features & Performance Benefits
- Robust Construction & High Load Capacity: Manufactured entirely from chrome steel, including rings, balls, and cage, this bearing delivers high strength and durability. It supports a substantial dynamic load rating of 16,096 lbf and a static load rating of 10,116 lbf, ensuring reliable performance under significant radial loads.
- Optimized Internal Clearance: The C4 radial internal clearance is a critical feature for applications involving thermal gradients or interference fits, preventing operational issues caused by bearing preload and ensuring smooth running.
- Effective Contamination Protection: The double-shielded (2Z) design effectively retains the factory-applied grease and protects the internal components from large contaminants, extending the bearing's service life in moderately dirty environments.
- Ready-to-Install & Long-Lasting: Pre-lubricated with GJN grease, the bearing is maintenance-free for its entire service life under normal operating conditions, reducing downtime and maintenance costs.
6311-2Z/C4GJN Bearing Typical Application Areas
The 6311-2Z/C4GJN is widely used across various industrial sectors due to its robust design and protective features. Common applications include:
- Electric Motors
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Pumps and Fans
