Cylindrical Roller Bearings FAG NU328 -E-M1

The NU328 -E-M1 cylindrical roller bearing from FAG Wälzlager, with a 140 mm bore and an outer diameter of 300 mm, provides a high-load-capacity floating bearing arrangement for high radial forces.

The NU328 -E-M1 cylindrical roller bearing from FAG Wälzlager is a single-row radial roller bearing designed for heavy mechanical loads. Thanks to the line contact between the cylindrical rollers and the raceways, this design can accommodate high radial forces. As an open bearing with a brass cage, this version is designed for operating temperatures ranging from –30 to +150 degrees. Typical applications include industrial drives and gearboxes where the shaft and housing are guided.

What is the NU328 -E-M1 cylindrical roller bearing suitable for in mechanical engineering?

This design functions primarily as a pure idler bearing. Because the outer ring has solid flanges and the inner ring is flangeless, the inner ring can be withdrawn from both sides. This allows the component to compensate for operational length expansion of the shaft within the bearing itself without any binding. It is mainly used in gearboxes and heavy-duty drive systems subject to purely radial loads. The fact that the rings can be disassembled also facilitates separate mounting on the shaft and housing.

What is the function of the brass cage in the NU328-E-M1 cylindrical roller bearing?

The solid brass cage, designated M1, is characterised by high strength and precise guidance of the rolling elements. Brass withstands high accelerations, vibrations and dynamic loads during operation. When designing the application, it should be noted that this bearing is manufactured with standard radial clearance and that the outer ring has neither a lubrication groove nor a lubrication bore. As this is an open design without an integrated seal, the lubricant is supplied via the surrounding housing.