Cylindrical Roller Bearings FAG NU219 -E-XL-M1-C3

The FAG NU219 -E-XL-M1-C3 cylindrical roller bearing, measuring 95 × 170 × 32 mm, is designed as a support bearing to withstand high radial loads.

The FAG NU219 -E-XL-M1-C3 cylindrical roller bearing is an open, single-row radial roller bearing designed for demanding industrial applications. With a bore of 95 mm, an outer diameter of 170 mm and a width of 32 mm, this design transmits high radial loads thanks to the line contact between the rollers. The design of the NU series guides the rolling elements on the outer ring, whilst the inner ring is flangeless. This makes this roller bearing particularly suitable for mountings that need to compensate for changes in shaft length.

When is the NU219 -E-XL-M1-C3 cylindrical roller bearing used?

In bearing arrangements subject to high radial forces, this floating bearing guides the shaft radially and allows axial displacement with minimal resistance. The design compensates for temperature-induced changes in shaft length without inducing stress between the inner ring and the roller set. As the inner ring can be removed from both sides, you can easily separate the bearing rings during assembly. This facilitates installation and maintenance in housings where a fixed bearing and a floating bearing are combined.

What is the function of the brass cage and the C3 clearance in this bearing?

The solid brass cage (M1) guides the rollers at a precise distance and is suitable for environments subject to vibrations and high acceleration forces. Compared to sheet metal cages, the material absorbs mechanical loads whilst retaining its shape. The designation C3 indicates an increased radial clearance compared with the standard version. It compensates for thermal differences between the inner and outer rings during operation without the rollers becoming jammed. The operating temperature range is from –30 to +150 degrees Celsius.