NU2244-EX-TB-M1

The FAG NU2244-EX-TB-M1 is a robust, single-row cylindrical roller bearing designed for demanding industrial applications. With an impressive dimension set of 220mm bore, 400mm outside diameter, and 108mm width, this bearing is part of the light, wide series and features an "EX" designation, indicating an increased capacity design for superior performance under heavy radial loads. Its "NU" configuration means the outer ring has two rigid ribs while the inner ring is smooth, allowing it to function as a non-locating or "floating" bearing. This key characteristic enables the axial displacement of the shaft relative to the housing, a vital function for accommodating thermal expansion in machinery like large gearboxes, electric motors, and heavy pumps. The dismountable design simplifies mounting and inspection, offering practical benefits in maintenance and assembly processes.

Built to handle high-speed operation and significant forces, the NU2244-EX-TB-M1 incorporates a precision-machined, two-piece brass cage (M1) that is roller-guided. This solid brass construction ensures maximum stability and lubrication efficiency, contributing to a longer service life compared to standard designs. The "TB" suffix further denotes a special crowning on the roller side surfaces, which optimizes lubrication distribution between the rollers and raceways, minimizing friction and wear. With high dynamic and static load ratings (C_r = 1,630  kN and C_0r = 2,370  kN respectively) and a reference speed of 2,440  r/min, this bearing is engineered for reliability in the most challenging operational environments. The standard normal internal clearance (CN) and P6 class running accuracy complete a profile that stands for durability, high rigidity, and reliable operation.

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