Product Overview: The NN 3048 Double-Row Cylindrical Roller Bearing
The NN 3048 is a high-precision, double-row cylindrical roller bearing engineered for applications demanding exceptional rigidity and high radial load-carrying capacity. With principal dimensions of 240mm bore diameter, 360mm outer diameter, and 92mm thickness, this bearing is a key component in heavy-duty and high-accuracy machinery. As part of our NN 3000 Series, the NN 3048 features two rows of cylindrical rollers, which provides substantial radial stiffness and prevents shaft deflection under extreme loads. Its design is optimized for accommodating purely radial forces and is not suitable for axial loads.
Manufactured to exacting standards, the NN 3048 is a preferred choice for machine tool spindles and other precision rotating equipment where accuracy is paramount. The inner ring of this bearing is separable, which simplifies the mounting and dismounting process during installation and maintenance. Explore our comprehensive range of Cylindrical Roller Bearings to find the ideal solution for your high-performance industrial applications.
Features of the NN 3048 Bearing
- Double-Row Design: Two rows of rollers provide excellent radial load capacity and high rigidity.
- High Precision: Manufactured to tight tolerances, making it suitable for high-speed and high-accuracy applications.
- Separable Inner Ring: Allows for easier mounting, dismounting, and inspection procedures.
- Purely Radial Load Support: Specifically designed to handle heavy radial loads with no axial load capability.
- Exceptional Rigidity: Minimizes shaft deflection, ensuring stable and precise operation of machinery.
- Durable Construction: Made from high-quality bearing steel for enhanced durability and a long service life under demanding conditions.
Common Applications
- Machine Tool Spindles: Widely used in lathes, milling machines, and grinding machines where precision is critical.
- Rolling Mills: Provides robust support for rollers in steel and metal processing plants.
- Industrial Gearboxes: Ideal for high-torque gear systems requiring rigid shaft support.
- Printing Machinery: Ensures stable and precise rotation of large printing cylinders.
- Large Electric Motors and Generators: Supports heavy rotors, ensuring reliable performance.
- Heavy-Duty Cranes and Hoists: Used in gearbox and pulley systems to manage extreme radial forces.
- Vibrating Screens and Crushers: Withstands the harsh conditions and heavy loads found in mining and construction equipment.
Benefits of Using the NN 3048 Bearing
- Enhanced Rotational Accuracy: High rigidity leads to superior operational precision and product quality.
- Increased Machine Uptime: Robust design reliably handles heavy loads, reducing the risk of premature failure and costly downtime.
- Simplified Maintenance: The separable design facilitates easier installation and routine maintenance checks.
- High-Speed Capability: Optimized internal geometry allows for operation at high rotational speeds without compromising performance.
- Improved System Stability: Effectively minimizes shaft displacement, enhancing the overall stability and reliability of the machinery.
- Extended Operational Life: High-quality materials and construction ensure long-term performance even in challenging industrial environments.
