Product Overview: The NJ 218 Cylindrical Roller Bearing
The NJ 218 bearing is a high-capacity, single-row cylindrical roller bearing with dimensions of 90x160x30mm. As a key component in our Cylindrical Roller Bearings range, this bearing is part of the NJ 200 Series. Its specific design features two integral flanges on the inner ring and a single flange on the outer ring. This configuration allows the bearing to accommodate high radial loads and locate the shaft axially in one direction, making it ideal for applications requiring shaft guidance.
Engineered for reliability and performance, the NJ 218 is a separable bearing, meaning the inner ring with its roller and cage assembly can be mounted independently of the outer ring. This feature significantly simplifies installation, inspection, and maintenance procedures. Its robust construction ensures a long service life in demanding industrial environments where high speeds and heavy radial forces are present.
Features of the NJ 218 Bearing
- High Radial Load Capacity: The line contact between the rollers and raceways provides excellent radial stiffness and allows for the accommodation of heavy radial loads.
- Axial Location Capability: Designed to locate the shaft axially in a single direction, providing stability and support against axial forces from one side.
- Separable Design: The inner and outer rings can be mounted separately, which simplifies the assembly and dismounting process, especially in tight-fit applications.
- Low Friction: The optimized internal geometry minimizes friction between the rollers and raceways, reducing heat generation and allowing for higher operational speeds.
- Durable Construction: Manufactured from high-purity, hardened bearing steel for exceptional durability, wear resistance, and a long operational lifespan.
- High Precision: Produced to tight tolerances to ensure consistent performance and reliability in high-precision machinery.
Applications of NJ 218 Bearings
- Industrial Gearboxes: Provides robust support for gears and shafts, ensuring reliable power transmission under heavy loads.
- Electric Motors: Used in large electric motors to support the rotor shaft, handling both high speeds and significant radial forces.
- Pumps and Compressors: Ensures the smooth and efficient rotation of shafts in industrial pumping and compression equipment.
- Construction Machinery: Ideal for heavy-duty equipment like excavators, cranes, and road rollers where durability is critical.
- Vibrating Screens and Crushers: Withstands the harsh conditions and heavy loads typical in mining and aggregate processing machinery.
- Machine Tool Spindles: Offers the precision and rigidity required for accurate machining operations.
- Rolling Mills: Employed in steel and metal processing equipment to support heavy rollers and withstand extreme operating conditions.
Benefits of Using the NJ 218 Bearing
- Enhanced Machine Reliability: Its robust design and high load capacity contribute to less downtime and more consistent machine operation.
- Simplified Maintenance: The separable nature of the bearing allows for easier inspection, lubrication, and replacement, reducing maintenance time and costs.
- Improved Operational Efficiency: Low friction characteristics lead to reduced energy consumption and lower operating temperatures.
- Extended Service Life: High-quality materials and optimized design ensure long-lasting performance, even in challenging environments.
- Effective Shaft Guidance: Provides reliable single-direction axial location for the shaft, preventing unwanted movement and ensuring proper alignment.
- Versatile Performance: Suitable for a wide array of heavy industrial applications requiring high radial strength and axial positioning.
