Cylindrical Roller Bearings FAG NU407

The NU407 cylindrical roller bearing from FAG Rolling Bearings is a single-row idler bearing measuring 35 × 100 × 25 mm, offering a high radial load-carrying capacity for industrial shaft mountings.

As a cylindrical roller bearing, the NU407 absorbs high radial forces. The cylindrical rolling elements create line contact with the raceway, which enables greater rigidity and load-carrying capacity compared to ball bearings, which are subjected to point loads. The FAG roller bearing design features standard radial clearance and the standardised tolerance class P0/PN (ABEC 1). A sheet steel cage guides the rollers evenly and keeps friction resistance low.

In which installation situations does the NU407 cylindrical roller bearing prove its worth?

It is primarily used in bearing locations where only radial forces act and where thermal linear expansion of the shaft needs to be compensated for. As the bearing has an open design, it can be flexibly lubricated with application-specific lubricants. The bearing components are designed for a temperature range of -30 to +150 degrees.

What characteristics distinguish the NU design as a non-locating bearing?

In the NU design, the outer ring has two fixed flanges, whilst the inner ring is flangeless and can be removed from both sides. This design functions purely as a non-locating bearing and allows the shaft to move relative to the housing without axial constraint when heated. Furthermore, the separable inner ring simplifies assembly and disassembly, as both rings can be fitted separately. As the outer ring has no groove or lubrication bore, the lubricant is supplied via the housing design.