Cylindrical Roller Bearings FAG NU313 -E-XL-M1-C3

The FAG NU313 -E-XL-M1-C3 cylindrical roller bearing, measuring 65x140x33 mm, with a brass cage and increased C3 clearance, offers high radial load-carrying capacity when used as a non-locating bearing.

The FAG NU313 -E-XL-M1-C3 cylindrical roller bearing is a single-row radial roller bearing designed for demanding industrial applications. With its main dimensions of 65 mm bore diameter, 140 mm outer diameter and 33 mm width, this bearing can accommodate high radial loads. The solid brass cage guides the rolling elements precisely and is suitable for operating conditions involving vibrations or accelerations.

In which bearing arrangements is the NU313-E-XL-M1-C3 cylindrical roller bearing used?

This single-row roller bearing is primarily used as a conventional non-locating bearing in bearing arrangements subject to high radial forces. Due to the NU design, the outer ring has two fixed flanges, whilst the inner ring is flangeless. This allows the shaft to compensate for axial length changes caused by thermal expansion directly within the bearing without any constraint. Furthermore, the inner ring can be removed from both sides, which facilitates the separate assembly of the inner and outer rings.

What are the advantages of the brass cage and the C3 bearing clearance?

The version with the suffix M1 features a robust brass cage that is resistant to mechanical shocks and inertial forces. The slightly increased radial clearance (C3) compensates for thermal differences between the shaft and housing, as well as the fit allowance in fixed bearing seats. The open bearing allows for an operating temperature range of -30 to +150 degrees and requires a suitable lubricant as well as external housing seals.