Cylindrical Roller Bearings FAG NU230 -E-XL-M1-C3

The FAG NU230 -E-XL-M1-C3 cylindrical roller bearing offers high radial load-carrying capacity with a 150 mm bore, a brass cage and increased C3 clearance.

The NU230 -E-XL-M1-C3 cylindrical roller bearing is a single-row radial roller bearing designed for demanding industrial applications. Thanks to the line contact between the rollers and raceways, this design can accommodate very high radial loads. This design, developed by FAG, features an outer ring with two fixed flanges, whilst the inner ring is flangeless. As a result, the unit functions purely as a floating bearing, compensating for changes in shaft length within the bearing housing without any constraint.

In which applications does the NU230 -E-XL-M1-C3 cylindrical roller bearing act as a floating bearing?

Designs primarily utilise this bearing in locations where high radial forces are present and thermal linear expansion of the shaft must be compensated for. Typical applications are found in general mechanical and plant engineering in bearing arrangements subject to high radial loads. As the inner ring can be removed from both sides, the roller bearing can be fitted separately. This simplifies installation in confined spaces or where there are tight fits on the shaft.

What do ‘brass cage’ and ‘C3 clearance’ mean in the NU design?

The designation M1 indicates a solid brass cage, which precisely guides the cylindrical rollers and withstands dynamic loads. The additional designation C3 stands for a slightly increased radial clearance compared with the standard version. This additional clearance between the rolling elements and raceways helps to prevent seizing if temperature differences occur between the shaft and housing during operation, or if tight fits reduce the bearing clearance. A temperature range of -30 to +150 degrees is permissible for use.