Product Overview: The NJ 321 Cylindrical Roller Bearing
The NJ 321 is a high-capacity, single-row cylindrical roller bearing designed for demanding industrial applications. With principal dimensions of 105mm bore diameter, 225mm outer diameter, and 49mm width, this bearing is part of our extensive Cylindrical Roller Bearings collection and a key component of the NJ 300 Series. Its specific NJ design features two integral flanges on the outer ring and a single integral flange on the inner ring, enabling it to accommodate axial displacement of the shaft relative to the housing in one direction while also carrying heavy radial loads.
The separable design of the NJ 321 bearing, where the inner ring can be mounted independently from the outer ring and roller assembly, significantly simplifies the mounting and dismounting process. This feature, combined with its robust construction, makes it an ideal choice for machinery where high performance and reliability are critical. As a premier supplier, we guarantee that our NJ 321 bearings meet stringent industry standards for performance and durability.
Key Features of the NJ 321 Bearing
- High Radial Load Capacity: The line contact between rollers and raceways allows for the accommodation of very high radial loads.
- Single-Direction Axial Location: The flange configuration provides axial guidance for the shaft in one direction.
- Separable Design: Allows for easier installation, maintenance, and inspection as the inner and outer rings can be mounted separately.
- High-Speed Performance: Engineered for low friction and optimized internal geometry, making it suitable for high-speed operations.
- Durable Construction: Manufactured from high-quality, clean bearing steel for extended service life and reliability under tough conditions.
- Dimensional Stability: Precision engineering ensures consistent performance and interchangeability.
Common Applications of NJ 321 Bearings
- Industrial Gearboxes: Provides robust support for gears and shafts, handling significant radial forces.
- Electric Motors: Used in large motors to support the rotor shaft and manage heavy loads.
- Pumps and Compressors: Ensures reliable operation of rotating components in fluid and gas handling equipment.
- Construction Machinery: Essential for heavy equipment like excavators, cranes, and loaders where durability is key.
- Rolling Mills: Withstands the extreme loads and high temperatures found in metal forming and processing.
- Wind Turbines: Supports the main shaft and gearbox components in renewable energy generation systems.
- Mining and Quarrying Equipment: Suitable for crushers, conveyors, and other machinery operating in harsh environments.
Benefits of Using the NJ 321 Bearing
- Enhanced Machine Reliability: Its ability to handle heavy loads and provide axial stability reduces stress on other components, minimizing downtime.
- Simplified Assembly: The separable nature of the bearing streamlines the mounting and fitting process, saving time and reducing labor costs.
- Extended Operational Life: High-quality materials and design reduce wear and fatigue, leading to a longer service life for the bearing and the machine.
- Improved Rotational Efficiency: Low-friction characteristics contribute to reduced energy consumption and smoother operation.
- Versatile Performance: Suitable for a wide range of heavy industrial applications requiring both radial support and axial location.
- Reduced Maintenance: The robust design and materials decrease the frequency of maintenance and replacement, lowering overall operating costs.
