Cylindrical Roller Bearings FAG NJ234 -E-M1

The FAG NJ234 -E-M1 cylindrical roller bearing (170 × 310 × 52 mm) is a single-row support bearing with a brass cage designed to withstand high radial loads.

The FAG NJ234 -E-M1 cylindrical roller bearing is an open radial roller bearing designed for demanding industrial applications. With a bore of 170 mm, an outside diameter of 310 mm and a width of 52 mm, this single-row bearing transmits high radial forces. The absence of integrated seals allows for flexible lubrication options. Manufacture to tolerance class P0/PN (ABEC 1) ensures precise bearing seats, whilst the temperature range of -30 to +150 degrees allows for a wide variety of operating conditions.

What is the NJ234 -E-M1 cylindrical roller bearing suitable for?

This cylindrical roller bearing is suitable for industrial bearing arrangements where high radial loads and unilateral axial guidance forces are the primary considerations. The bearing serves to stably support radial forces whilst simultaneously providing defined axial fixation of the shaft in one direction.

Thanks to the solid brass cage, the roller bearing can withstand even severe vibrations and dynamic loads. Design engineers specifically use the NJ design at bearing locations where thermal linear expansion of the shaft in one direction needs to be compensated for without restriction.

What function does the NJ design fulfil as a support bearing?

As a support bearing, the NJ design has two fixed flanges on the outer ring and one fixed flange on the inner ring. This enables the bearing to absorb unidirectional axial forces whilst allowing axial displacement in the opposite direction. This property helps to prevent stress build-up caused by operational heating of the shaft.

In addition, the inner ring can be removed from one side, which facilitates separate mounting on the shaft and housing. The standard radial bearing clearance, in conjunction with standard fits, provides the necessary operating clearance for low-friction operation.