Product Overview: The N 221 Cylindrical Roller Bearing
The N 221 Cylindrical Roller Bearing is a high-capacity component engineered to handle substantial radial loads at high speeds. With principal dimensions of 105mm Bore Diameter, 190mm Outer Diameter, and 36mm Thickness, this bearing is a key part of our N 200 Series within the broader Cylindrical Roller Bearings category. Its specific 'N' design features two integral flanges on the inner ring and a flangeless outer ring. This configuration allows the bearing to accommodate axial displacement of the shaft relative to the housing in both directions, making it ideal for applications with thermal expansion or where precise axial positioning is not required at the bearing location.
Manufactured to exacting industry standards, the N 221's design ensures low friction and long service life. The rollers are profiled to prevent stress peaks at the roller ends, enhancing durability under heavy loads. As a leading supplier of industrial components, we provide top-tier bearings for the most demanding machinery.
Key Features of the N 221 Bearing
- High Radial Load Capacity: The line contact between the cylindrical rollers and raceways allows for the support of heavy radial forces.
- Axial Displacement Capability: The 'N' type design permits free axial movement between the shaft and housing, compensating for thermal expansion.
- Separable Design: The inner ring, complete with the roller and cage assembly, can be mounted independently of the outer ring, simplifying installation, inspection, and maintenance procedures.
- High-Speed Performance: Engineered for low friction and minimal heat generation, making it suitable for high-speed rotational applications.
- Robust Construction: Made from high-purity, through-hardened bearing steel for exceptional durability and wear resistance.
- Logarithmic Roller Profile: Reduces edge stressing and sensitivity to misalignment, extending the bearing's operational life.
Common Applications
- Industrial Gearboxes: Provides robust support for gears and shafts, handling the heavy radial loads typical in power transmission.
- Electric Motors: Used as non-locating bearings on motor shafts to allow for thermal expansion during operation.
- Pumps and Compressors: Ensures reliable rotation of shafts in demanding fluid and gas handling equipment.
- Construction Machinery: Found in heavy equipment like excavators and cranes where durability is critical.
- Rolling Mills: Withstands the extreme radial loads and high temperatures common in metalworking applications.
- Vibrating Screens: Its robust design is well-suited for the high-frequency, heavy-load conditions of industrial screening equipment.
- Machine Tool Spindles: Provides the rigidity and precision required for high-accuracy machining operations.
Benefits of Using the N 221 Bearing
- Enhanced Machine Reliability: Its ability to manage heavy radial loads and thermal expansion prevents premature failure and extends machine uptime.
- Simplified Mounting and Maintenance: The separable nature of the bearing allows for easier and quicker assembly and disassembly.
- Extended Service Life: High-quality materials and optimized internal geometry minimize wear and extend the bearing's lifespan.
- Improved Operational Efficiency: Low-friction characteristics contribute to reduced energy consumption and cooler running temperatures.
- Versatile Shaft Support: Acts as an excellent free-end bearing, simplifying designs where one end of the shaft needs axial freedom. A common pairing is with a locating bearing like the NJ 221.
