Cylindrical Roller Bearings FAG NU2238 -E-M1

The NU2238 -E-M1 single-row cylindrical roller bearing from FAG offers high radial load-carrying capacity with main dimensions of 190 × 340 × 92 mm for demanding industrial applications.

The NU2238 -E-M1 cylindrical roller bearing from FAG Rolling Bearings is designed as a single-row radial roller bearing to accommodate high radial loads. Thanks to the cylindrical roller geometry, there is line contact with the raceways. The design as a floating bearing compensates for thermally induced changes in shaft length within the bearing mounting without any constraint. With standard tolerances to P0/PN or ABEC 1 and standard radial clearance, this roller bearing is suitable for standard installation scenarios in mechanical engineering.

What is the NU2238 -E-M1 cylindrical roller bearing suitable for in mechanical engineering?

Design engineers primarily use this bearing arrangement where high radial forces act on heavy shafts and axial displacement occurs. Typical applications include bearing arrangements subject to purely radial loads and requiring axial compensation. As the outer ring has two fixed flanges, it guides the roller set together with the cage, whilst the flangeless inner ring allows axial relative movements of the shaft unimpeded. This prevents any stress-inducing axial forces from arising in the housing.

What are the advantages of the brass cage in the NU2238 -E-M1 bearing?

The solid brass cage (designation M1) provides the roller set with mechanical stability and performs particularly well under strong vibrations or varying speeds. Brass has favourable emergency running properties and withstands shock loads. Combined with its open design, the roller bearing is rated for operating temperatures ranging from -30 to +150 degrees. As the outer ring has neither lubrication grooves nor lubrication holes, grease or lubricating oil is supplied directly via the surrounding housing structure.