Product Overview: The NU 309 Cylindrical Roller Bearing
The NU 309 is a high-capacity single-row cylindrical roller bearing designed for heavy radial loads and high-speed applications. With dimensions of 45x100x25mm, it is a key component in our Cylindrical Roller Bearings collection. The 'NU' designation signifies a specific design where the inner ring is flangeless, and the outer ring has two integral flanges. This configuration allows the bearing to accommodate axial displacement of the shaft relative to the housing in both directions, making it an excellent choice for non-locating bearing positions.
As a specialist supplier of industrial components, we offer the NU 309 bearing manufactured to precise industry standards, ensuring reliability and a long service life. Its separable design simplifies mounting and dismounting procedures, which is particularly advantageous during maintenance. This bearing is essential for machinery where thermal expansion of the shaft must be compensated for without inducing stress. Explore our full NU 300 Series for more options.
Key Features of the NU 309 Bearing
- High Radial Load Capacity: The line contact between the rollers and raceways provides excellent capacity for heavy radial forces.
- Axial Displacement Accommodation: The NU design with a flangeless inner ring allows for axial movement, accommodating shaft expansion and contraction.
- Separable Design: The inner ring can be mounted independently of the outer ring and roller cage assembly, simplifying installation and maintenance.
- High-Speed Performance: Engineered for low friction and minimal heat generation, making it suitable for high-speed rotational applications.
- Robust Construction: Manufactured from high-purity, hardened bearing steel for exceptional durability and wear resistance.
- High Stiffness: Provides a high degree of radial rigidity, crucial for applications requiring precise shaft support.
Common Applications
- Industrial Gearboxes: Used as non-locating bearings on gear shafts to support heavy radial loads and allow for thermal expansion.
- Electric Motors: Ideal for supporting motor shafts, particularly in large industrial motors where thermal effects are significant.
- Pumps and Compressors: Provides reliable support for rotating assemblies in demanding fluid and gas handling equipment.
- Machine Tool Spindles: Ensures rigid and precise rotation in lathes, milling machines, and grinders.
- Construction and Mining Equipment: Withstands the heavy loads and harsh operating conditions found in heavy machinery.
- Rolling Mills: Employed in steel and metal processing to handle extreme radial forces.
- Vibrating Screens and Crushers: Its robust design makes it suitable for high-impact and vibratory applications.
Benefits of Using the NU 309 Bearing
- Enhanced Machine Reliability: Effectively manages thermal expansion of the shaft, preventing premature failure and increasing operational uptime.
- Simplified Installation and Maintenance: The separable components allow for easier and faster mounting and dismounting procedures.
- Extended Service Life: High load capacity and durable materials result in a longer operational lifespan, even in demanding environments.
- Improved Operational Efficiency: Low-friction characteristics contribute to reduced energy consumption and smoother machinery performance.
- Versatile Application Range: Suitable for a wide variety of industrial machinery requiring robust radial support and axial freedom.
- Reduced Operating Temperatures: Optimized internal geometry minimizes friction, leading to cooler operation at high speeds.
