Cylindrical Roller Bearings FAG NU234 -E-XL-M1-C3

The FAG NU234 -E-XL-M1-C3 cylindrical roller bearing is used as a non-locating bearing for shafts with a diameter of 170 mm under high radial loads.

The FAG NU234 -E-XL-M1-C3 cylindrical roller bearing is an open, single-row rolling bearing for industrial drives subject to high radial loads. With key dimensions of a 170 mm bore, 310 mm outside diameter and 52 mm width, this design accommodates purely radial forces. The solid brass cage ensures that the cylindrical rollers remain stable even under dynamic loads. The roller bearing is manufactured to the standard tolerance class P0/PN or ABEC 1.

How does the NU234 -E-XL-M1-C3 cylindrical roller bearing function as a non-locating bearing?

This design functions as a non-locating bearing to accommodate purely radial forces without providing axial guidance. The NU design features two fixed flanges on the outer ring, whilst the inner ring is flangeless. Consequently, the inner ring can be removed from either side, which simplifies fitting onto the shaft and into the housing. At the same time, the bearing compensates for axial length changes in the shaft without constraint within the bearing. The component is designed for operating temperatures between –30 and +150 degrees Celsius.

What are the characteristics of the brass cage and C3 bearing clearance in the NU234?

This design combines a solid M1 brass cage with the slightly increased radial bearing clearance C3. The C3 bearing clearance provides increased radial play as supplied. This helps to prevent the rolling elements from becoming stressed when thermal expansion during operation or fit allowances cause the inner ring to expand. The brass cage guides the cylindrical rollers precisely and is suitable for operating conditions involving vibrations or rapid changes in rotational speed.