NU344-E-TB-M1

The NU344-E-TB-M1 stands as a heavy-duty, single-row cylindrical roller bearing designed specifically for high radial load environments where reliability cannot be compromised. Featuring a 220mm bore, 460mm outer diameter, and an 88mm width, this unit is built with an optimized internal "E" design to significantly boost its load-carrying capacity compared to standard configurations. As a non-locating (NU) type bearing, the outer ring is equipped with two rigid ribs while the inner ring is smooth, allowing for essential axial displacement of the shaft during thermal expansion. This makes it an ideal floating bearing solution for large industrial gearboxes and heavy electrical motors.

Efficiency and durability are further enhanced by the M1 machined brass cage and the specialized TB suffix modification. The roller-guided brass cage ensures stable operation even under high-vibration conditions, while the "TB" designation refers to improved crowning on the roller end faces, which optimizes lubrication between the rollers and the ribs to prevent friction-induced heat. With a massive static load rating of 1,890 kN and a limiting speed of 2,170 rpm, the NU344-E-TB-M1 provides the structural integrity needed for demanding applications in mining, paper processing, and steel mills.

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