311SFF
200, 300 & 6400 Series Industrial Single Row Deep Groove Ball Bearings
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Performance
Materials
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311SFF Bearing Product Overview & Core Advantages
The 311SFF metric ball bearing is a single row deep groove ball bearing designed for high-performance industrial applications requiring reliable radial load capacity. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers excellent precision and operational consistency. Its open design allows for versatile lubrication options, while the chrome steel construction of all components ensures durability and a long service life, making it a robust solution for demanding environments.
311SFF Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 311 | Standard bore diameter code for 55mm |
| SFF | Manufacturer-specific designation for this bearing series and configuration |
| Open (Seal Type) | No seals or shields, enabling high-speed operation and custom lubrication |
| CN (Clearance) | Standard radial internal clearance for normal operating conditions |
311SFF Bearing Structural Features & Performance Benefits
The single row design provides a compact and efficient solution for radial load applications. The use of high-grade chrome steel for the rings, balls, and cage ensures uniform material properties, contributing to smooth operation and reduced wear. With a radial dynamic load rating of 17,805 lbf and a static load rating of 15,062 lbf, this bearing offers reliable performance under significant stress. The open construction and absence of integral seals allow it to achieve a limiting speed of 6,300 rpm, making it suitable for high-speed applications. The standard CN clearance provides optimal performance for most operating conditions.
311SFF Bearing Typical Application Areas
- Electric Motors and Generators
- Industrial Gearboxes and Transmissions
- Material Handling Conveyor Systems
- Agricultural Machinery
- Pumps and Compressors
