Cylindrical Roller Bearings FAG NU314 -E-XL-M1A-C3

The NU314 -E-XL-M1A-C3 cylindrical roller bearing from FAG, with a 70 mm bore and a solid brass cage, provides a heavy-duty support for purely radial forces.

The NU314 -E-XL-M1A-C3 cylindrical roller bearing is a single-row roller bearing manufactured by FAG for demanding industrial applications. As an open support bearing, this component absorbs radial loads and compensates for axial length changes in the shaft directly within the bearing. Thanks to its standardised key dimensions – a 70 mm bore, 150 mm outer diameter and 35 mm width – the roller bearing fits precisely into standardised housing designs.

What is the NU314 -E-XL-M1A-C3 cylindrical roller bearing suitable for as a floating bearing?

This design is used in bearing arrangements where thermally induced length changes in rotating shafts must be compensated for without constraint. In the NU version, the outer ring has two fixed flanges, whilst the inner ring is flangeless and can be removed from both sides. This ability to dismantle the bearing significantly facilitates the separate assembly of both bearing rings during the design and maintenance of shaft bearings.

What advantages do the brass cage and C3 clearance offer in this FAG bearing?

The solid brass cage, which is mounted on the outer ring and designated by the suffix M1A, is characterised by high strength under vibration or impact loads. The slightly increased radial clearance (C3) helps to ensure that sufficient operating clearance is maintained even under operational heating and tight fits. The open bearing is designed for a temperature range of -30 to +150 degrees and is lubricated via the surrounding housing system.