Product Overview: The NU 313 Cylindrical Roller Bearing
The NU 313 Cylindrical Roller Bearing is a high-capacity, single-row bearing designed for heavy radial loads and high-speed applications. With principal dimensions of 65mm Bore Diameter, 140mm Outer Diameter, and 33mm Thickness, this component is a key part of our NU 300 Series within the broader Cylindrical Roller Bearings collection. The 'NU' designation signifies that the outer ring has two integral flanges, while the inner ring is flangeless. This separable design allows the inner ring to be mounted independently from the outer ring and roller assembly, greatly simplifying installation and maintenance procedures.
A critical feature of the NU 313 is its ability to accommodate axial displacement of the shaft relative to the housing in both directions. This makes it an excellent choice for non-locating bearing positions, particularly where thermal expansion of the shaft is a factor. Manufactured from high-quality bearing steel, it provides exceptional durability and performance in demanding industrial environments. Explore our complete range of NU Series bearings to find the ideal solution for your machinery.
Key Features of the NU 313 Bearing
- Separable Design: The inner ring can be removed, which simplifies mounting and dismounting processes, especially in tight-fitting applications.
- High Radial Load Capacity: The line contact between the rollers and raceways allows for the support of very heavy radial loads.
- Axial Displacement Accommodation: The flangeless inner ring permits axial movement of the shaft, compensating for thermal expansion or mounting inaccuracies.
- High-Speed Performance: Engineered for low friction and optimal roller geometry, making it suitable for high-rotational speed applications.
- Robust Construction: Made from premium-grade, through-hardened bearing steel for superior strength, wear resistance, and long service life.
- Interchangeability: Manufactured to standard ISO dimensions, ensuring it is interchangeable with other major brands.
Common Applications
- Industrial Gearboxes: Provides robust support for gears and shafts, handling the high radial forces common in power transmission.
- Electric Motors: Used as the non-locating bearing to support motor shafts and manage thermal growth.
- Pumps and Compressors: Ensures reliable rotation of shafts in industrial fluid and gas handling equipment.
- Construction Machinery: Found in heavy equipment like excavators and cranes where durability under heavy loads is essential.
- Machine Tool Spindles: Offers the rigidity and precision required for high-accuracy machining operations.
- Vibrating Screens and Crushers: Withstands the harsh conditions and heavy loads present in mining and aggregate processing machinery.
- Rolling Mills: Provides critical support for rollers in steel and metal processing plants.
Benefits of Using the NU 313 Bearing
- Enhanced Machine Reliability: By accommodating axial shaft movement, it prevents induced axial loads, reducing stress on the machine and extending its operational life.
- Simplified Installation and Maintenance: The separable nature of the bearing allows for easier and faster assembly and inspection routines, minimizing downtime.
- Extended Service Life: High load-carrying capacity and durable materials result in a longer-lasting bearing, even in continuous operation.
- Improved Operational Efficiency: Low-friction design minimizes energy loss and heat generation, contributing to more efficient machine performance.
- Versatile Use: Suitable for a wide array of industrial applications, making it a flexible and valuable component for various engineering needs.
