Cylindrical Roller Bearings FAG NU2215 -E-M1

The FAG NU2215 -E-M1 cylindrical roller bearing is a single-row non-locating bearing with a brass cage, designed for high radial loads, with dimensions of 75 × 130 × 31 mm.

The FAG NU2215 -E-M1 cylindrical roller bearing, as a single-row radial roller bearing, accommodates high radial loads. Thanks to the line contact between the rolling elements and the raceways, this design offers high radial stiffness during operation. With dimensions of 75 mm inner diameter, 130 mm outer diameter and 31 mm width, the NU design functions as a non-locating bearing. The design compensates for shaft misalignment within the bearing without constraint, as the inner ring is flangeless and can be removed from both sides.

What is the NU2215 -E-M1 cylindrical roller bearing suitable for in drive engineering?

This rolling bearing is used in bearing arrangements where high radial forces are present and axial thermal expansion of the shaft must be compensated for. Such operating conditions frequently occur in rotating industrial drives due to thermally induced changes in length. As the outer ring has two fixed guide flanges, whilst the inner ring has a smooth finish on both sides, the bearing does not transmit any axial forces. In practice, this floating bearing arrangement is usually combined with a separate fixed bearing, which provides the defined axial guidance for the shaft.

What are the distinctive features of the brass cage in the -E-M1 design?

The abbreviation M1 indicates a solid brass cage which guides the cylindrical rollers and absorbs mechanical stresses. Brass materials offer high dimensional stability under impact loads, vibrations and rapid acceleration. The bearing is approved for operation within a temperature range of -30 to +150 degrees. As the bearing is of an open design and has no integrated lip seals, the lubricant and housing seal must be selected to suit the ambient conditions.