Product Overview: The NN 3072 Double-Row Cylindrical Roller Bearing
The NN 3072 is a high-precision, double-row cylindrical roller bearing designed for applications demanding exceptional rigidity and high radial load-carrying capacity. With principal dimensions of 360x540x134mm, this bearing is a key component in heavy-duty machinery where accuracy is paramount. As part of our specialized NN Series, the NN 3072 features two rows of cylindrical rollers, which provides a high degree of stiffness, making it an ideal choice for machine tool spindles and other precision applications. The inner ring is typically designed without flanges, allowing for axial displacement of the shaft relative to the housing.
We are a premier supplier of industrial components, ensuring that our NN 3072 bearings meet stringent industry standards for performance and reliability. This bearing's robust construction is engineered to support substantial radial forces while operating at high speeds with minimal friction. For a comprehensive selection of similar high-performance components, explore our full range of Cylindrical Roller Bearings.
Features of the NN 3072 Bearing
- High Radial Load Capacity: The double-row roller design provides excellent support for heavy radial loads.
- Exceptional Rigidity: Engineered for maximum stiffness, minimizing shaft deflection under load and enhancing machine precision.
- High-Speed Capability: Optimized internal geometry allows for reliable operation at high rotational speeds.
- Separable Design: The components can be mounted separately, simplifying the installation and maintenance processes.
- Axial Displacement Accommodation: Allows for thermal expansion of the shaft by accommodating axial movement within the bearing itself.
- Precision Manufacturing: Produced to tight tolerances to ensure superior rotational accuracy and consistent performance.
Applications of NN 3072 Bearings
- Machine Tool Spindles: Widely used as the main spindle bearing in lathes, milling machines, and grinding machines due to its high rigidity.
- Rolling Mills: Provides robust support for the work rolls and backup rolls in steel and non-ferrous metal rolling mills.
- Large Industrial Gearboxes: Essential for supporting shafts in heavy-duty gear systems found in mining, construction, and power generation.
- Printing Machinery: Ensures the precise and stable rotation of large cylinders in industrial printing presses.
- Heavy Motors and Generators: Supports the rotor shaft in large-scale electrical machinery, handling significant radial forces.
- Marine Propulsion Systems: Used in gearbox and shaft applications where reliability and high load capacity are critical.
Benefits of Using the NN 3072 Bearing
- Enhanced Machine Accuracy: The high stiffness minimizes vibration and deflection, leading to improved workpiece quality and process precision.
- Increased Productivity: The ability to operate at high speeds allows for faster machine cycle times.
- Extended Service Life: Constructed from high-quality bearing steel, it offers excellent durability and resistance to wear in demanding conditions.
- Simplified Assembly: The separable nature of the bearing facilitates easier mounting and dismounting, reducing downtime.
- Improved Reliability: Robust design ensures dependable performance, reducing the risk of unexpected equipment failure and costly maintenance.
- Optimal Performance Under Load: Maintains its geometric stability even when subjected to heavy and fluctuating radial loads.
