Cylindrical Roller Bearings FAG NJ318 -E-M1

The FAG NJ318 -E-M1 cylindrical roller bearing (90x190x43 mm) accommodates high radial forces as well as unilateral axial loads, and guides the rollers within a solid brass cage.

The single-row cylindrical roller bearing NJ318 -E-M1 from FAG is designed as a support bearing. Thanks to the line contact between the cylindrical rollers and the raceways, the design can withstand high radial forces in machine bearings. The inner ring has a fixed flange and is removable from one side. As a result, the open roller bearing allows a defined axial displacement of the shaft in one direction, whilst supporting axial forces from the opposite direction.

What is the NJ318 -E-M1 cylindrical roller bearing suitable for as a support bearing?

Design engineers and maintenance personnel use this design primarily where shaft expansion due to temperature changes needs to be compensated for, whilst axial guidance remains necessary. Typical applications include shaft mountings in general mechanical engineering. As the inner ring can be removed from one side, the bearing can be fitted separately. This facilitates installation in confined spaces and simplifies maintenance work on the shaft.

What advantages does the M1 brass cage offer in operation?

The designation ‘M1’ refers to a solid brass cage. Compared with standard sheet steel cages, brass is characterised by high strength and good run-out properties, which is advantageous in the event of impact loads or vibrations. The bearing operates within a temperature range of -30 to +150 degrees. As the outer ring is manufactured without a lubrication bore and there are no integrated seals, lubrication is supplied via the surrounding housing using a suitable lubricating oil or rolling-element bearing grease.