Cylindrical Roller Bearings FAG NU207 -E-XL-M1A-C3

The FAG NU207 -E-XL-M1A-C3 cylindrical roller bearing, with a 35 mm bore and a solid brass cage, offers high radial load-carrying capacity for demanding industrial applications.

The NU207 -E-XL-M1A-C3 cylindrical roller bearing functions as a single-row radial roller bearing in a floating design. Thanks to the line contact between the cylindrical rollers and the raceways, this model can accommodate significant radial forces. FAG manufactures this version with a solid, externally guided brass cage and an increased clearance (C3). As an open bearing, the unit can be flexibly integrated into existing lubrication systems, whilst the removable inner ring facilitates the separate installation of the shaft and housing.

What functions does the NU207 -E-XL-M1A-C3 cylindrical roller bearing perform as a non-locating bearing?

This roller bearing is specifically designed to accommodate purely radial loads at higher speeds and serves to compensate for axial length changes in the shaft. As a NU-type idler bearing, the component has two fixed flanges on the outer ring, whilst the inner ring remains flangeless. This allows the shaft to move freely within the bearing in the event of thermal expansion. Typical applications include rigid shaft mountings subject to thermal expansion, as well as designs with separately mountable inner and outer rings.

What do the brass cage and C3 clearance mean in this design?

The solid brass cage with external flanges (designation M1A) provides stable guidance for the rollers and withstands high accelerations and vibrations during operation. The increased radial clearance (C3) provides additional leeway for applications where temperature differences arise between the inner and outer rings, or where tight fits cause the inner ring to expand. When designing the application, it must be borne in mind that the open bearing requires an external seal and a lubricant supply within the housing.