Cylindrical Roller Bearings FAG NJ309 -E-M1

The FAG NJ309 -E-M1 cylindrical roller bearing combines high radial load-carrying capacity with single-sided axial guidance in compact dimensions of 45 × 100 × 25 mm.

The NJ309 -E-M1 cylindrical roller bearing is a single-row radial roller bearing designed for demanding industrial applications. With dimensions of 45 mm bore, 100 mm outside diameter and 25 mm width, this design can withstand high radial loads. As an open bearing, it can be integrated into existing lubrication circuits. The integrated brass cage guides the cylindrical rollers precisely and is suitable for operating temperatures ranging from –30 to +150 degrees.

What loads does the NJ309 -E-M1 cylindrical roller bearing withstand in operation?

This rolling bearing is primarily used where high radial loads are present and, in addition, single-sided axial guidance of the shaft is required. Thanks to the line contact between the rollers and raceways, the design withstands sudden radial forces, whilst the outer ring – which has no groove or lubrication bore – supports a closed housing fit.

What features do the support bearing design and brass cage offer in the NJ309 -E-M1?

The NJ design functions as a support bearing: two fixed flanges on the outer ring and one flange on the inner ring absorb axial forces in one direction, whilst the shaft retains axial displacement in the opposite direction. The inner ring is removable from one side, which facilitates the installation and removal of the bearing assembly. The solid brass cage contributes to mechanical rigidity even under vibration, whilst manufacture within the standard tolerance class P0 or ABEC 1 ensures standardised fit accuracy.