Product Overview: The NJ 311 Cylindrical Roller Bearing
The NJ 311 Cylindrical Roller Bearing is a high-performance component engineered to handle substantial radial loads and locate the shaft axially in a single direction. With its principal dimensions of 55x120x29mm (Bore x Outer Diameter x Thickness), this bearing is a key part of our NJ 300 Series within the broader Cylindrical Roller Bearings category. The NJ design features two integral flanges on the inner ring and one on the outer ring, making it ideal for applications that require shaft guidance in one direction. Its separable design allows the inner and outer rings to be mounted independently, which greatly simplifies installation, inspection, and maintenance procedures.
As a premier supplier of industrial components, we ensure our NJ 311 bearings are manufactured to precise standards, delivering exceptional reliability and a long service life. This bearing is essential for the smooth and efficient operation of heavy-duty machinery across various industries. Explore our complete range of NJ Series bearings to find the perfect solution for your high-load application needs.
Key Features of the NJ 311 Bearing
- High Radial Load Capacity: The line contact between the cylindrical rollers and raceways provides excellent capacity for heavy radial forces.
- Single-Direction Axial Location: The flange configuration allows the bearing to accommodate axial displacement and locate the shaft in one direction.
- Separable Design: The inner ring, outer ring, and roller assembly can be mounted separately, simplifying the assembly and maintenance process.
- High-Speed Performance: Engineered with precision geometry to operate effectively at high rotational speeds with low friction.
- Robust Construction: Manufactured from high-purity, hardened bearing steel for superior durability and resistance to wear and fatigue.
- Dimensional Stability: Precision engineering ensures consistent performance and interchangeability with other standard bearings.
Common Applications for NJ 311 Bearings
- Industrial Gearboxes: Provides robust support for gears and shafts, handling the high radial forces typical in transmission systems.
- Electric Motors: Used to support motor shafts, ensuring reliable rotation under heavy loads.
- Pumps and Compressors: Essential for supporting rotating assemblies in industrial fluid and gas handling equipment.
- Construction Machinery: Found in heavy equipment such as excavators, cranes, and rollers where durability is critical.
- Automotive Transmissions: Supports shafts within vehicle gearboxes, contributing to smooth gear shifting.
- Vibrating Screens: Capable of withstanding the high radial loads and vibrations common in quarrying and mining equipment.
- Machine Tool Spindles: Offers the rigidity and precision required for high-accuracy machining operations.
Benefits of Using the NJ 311 Bearing
- Enhanced Equipment Reliability: The high load-carrying capacity reduces the risk of premature failure in demanding applications.
- Simplified Installation and Maintenance: The separable nature of the bearing allows for easier mounting and dismounting, reducing downtime.
- Effective Shaft Guidance: Provides reliable axial positioning in one direction, improving overall machine stability.
- Extended Service Life: High-quality materials and design minimize friction and wear, leading to a longer operational lifespan.
- Improved Operational Efficiency: Low friction characteristics help reduce energy consumption and heat generation.
- Versatile Application Range: Suitable for a wide array of heavy industrial and automotive machinery.
