Cylindrical Roller Bearings FAG NU319 -E-M1

The FAG NU319 -E-M1 cylindrical roller bearing is a single-row non-locating bearing with a brass cage and main dimensions of 95 × 200 × 45 mm, designed for high radial loads.

The NU319 -E-M1 cylindrical roller bearing serves as a radial rolling bearing designed to withstand high loads in industrial machinery. Thanks to the modified line contact between the rollers and raceways, this design can handle higher radial forces than point-contact ball bearings. The FAG roller bearing has a 95 mm bore, an outer diameter of 200 mm and a width of 45 mm. As it is an open bearing, the component can be flexibly integrated into oil- or grease-lubricated recirculating systems.

What functions does the NU319 -E-M1 cylindrical roller bearing perform as a support bearing?

As a pure non-locating bearing, the NU319 -E-M1 cylindrical roller bearing compensates for axial thermal expansion of the shaft directly between the rollers and the inner ring raceway. Typical applications include bearing arrangements subject to high radial forces and temperature-induced longitudinal displacement of shafts. The solid brass cage also withstands vibrations and shock loads. With a permissible temperature range of –30 to +150 degrees, the bearing is suitable for thermally demanding operating conditions.

What are the distinctive features of the NU design with a brass cage?

In the NU design, the outer ring guides the rollers between two fixed flanges, whilst the flangeless inner ring can be removed from both sides. This design considerably facilitates assembly and disassembly, as the inner and outer rings can be pressed onto the shaft and housing separately. This design features a standard radial bearing clearance and tolerance class P0/PN (ABEC 1). A solid brass cage helps to guide the rolling elements and ensures mechanical stability under heavy loads.