Product Overview: The NJ 309 Cylindrical Roller Bearing
The NJ 309 is a single-row cylindrical roller bearing engineered for high performance in demanding industrial applications. With key dimensions of 45mm Bore Diameter, 100mm Outer Diameter, and 25mm Thickness, this bearing is part of our robust NJ 300 Series. Its distinctive design features two integral flanges on the inner ring and a single flange on the outer ring. This configuration allows the bearing to accommodate heavy radial loads and also locate the shaft axially in one direction, making it an excellent choice for applications requiring both radial support and axial positioning.
As a key component in our range of Cylindrical Roller Bearings, the NJ 309 is manufactured to precise standards to ensure reliability and a long service life. The separable design, where the outer ring can be mounted independently from the inner ring and roller assembly, simplifies both installation and maintenance procedures. This versatility makes it a preferred choice for machinery across various sectors.
Key Features of the NJ 309 Bearing
- High Radial Load Capacity: The line contact between the cylindrical rollers and raceways provides excellent capacity for heavy radial loads.
- Single-Direction Axial Location: The flange arrangement allows the bearing to act as a locating bearing, guiding the shaft axially in one direction.
- Separable Design: The components can be mounted separately, which facilitates easier installation, inspection, and maintenance routines.
- High-Speed Performance: Engineered with low-friction characteristics, making it suitable for applications with high rotational speeds.
- Robust Construction: Manufactured from premium-grade bearing steel for superior durability and resistance to wear and fatigue.
- Dimensional Stability: Precision engineering ensures consistent performance and interchangeability.
Common Applications
- Industrial Gearboxes: Provides rigid support for gear shafts, handling both radial forces and providing axial location.
- Electric Motors: Used in large motors to support the rotor shaft and maintain precise alignment.
- Pumps and Compressors: Ensures reliable operation of rotating components under continuous, heavy loads.
- Machine Tool Spindles: Offers the rigidity and precision required for high-accuracy machining operations.
- Construction and Mining Equipment: Withstands the harsh operating conditions and heavy loads found in machinery like excavators and crushers.
- Automotive Transmissions: Used in gear systems to manage high radial forces efficiently.
- Vibrating Screens and Shakers: Its robust design is ideal for handling the demanding loads and vibrations in screening equipment.
Benefits of Using the NJ 309 Bearing
- Enhanced Machine Reliability: High load-carrying capability ensures stable and dependable performance, reducing the risk of unexpected failures.
- Simplified Assembly and Maintenance: The separable nature of the bearing allows for straightforward mounting and dismounting, minimizing downtime.
- Improved Shaft Guidance: Provides effective axial location in one direction, simplifying the overall bearing arrangement in a system.
- Extended Service Life: The combination of high-quality materials and optimized internal design leads to a longer operational lifespan.
- Versatile Functionality: Capable of handling both significant radial loads and providing axial positioning, making it adaptable to various industrial needs.
- Cost-Effective Solution: Its durability and low maintenance requirements contribute to a lower total cost of ownership over the machine's lifetime.
