Cylindrical Roller Bearings FAG NJ2315 -E-M1

The FAG NJ2315 -E-M1 cylindrical roller bearing, a single-row support bearing measuring 75x160x55 mm, offers high radial load-carrying capacity and axial guidance.

This single-row cylindrical roller bearing, the NJ2315 -E-M1, acts as a radial roller bearing and absorbs high radial forces. The line contact between the cylindrical rollers and the raceways ensures even load distribution during operation. This model is designed as an open bearing without an integrated seal. A solid brass cage guides the rolling elements. FAG specifies the bearing for a temperature range of –30 to +150 degrees.

When is the NJ2315 -E-M1 cylindrical roller bearing used as a support bearing?

This design is suitable for bearing locations where high radial forces are present and the shaft needs to be guided in an axial direction. Due to the NJ design, the bearing has two fixed flanges on the outer ring and one fixed flange on the inner ring. This enables it to act as a thrust bearing: it absorbs axial forces on one side whilst allowing axial displacement in the opposite direction.

What are the functions of the brass cage and the standard bearing clearance?

The brass cage is characterised by high strength and guides the rollers under severe vibrations and dynamic mass forces. As the inner ring is removable from one side, the bearing can be fitted separately, which simplifies installation where there are tight fits on the shaft. The standard radial bearing clearance compensates for thermal expansion under normal operating conditions. As the outer ring is manufactured without a groove or lubrication bore, the lubricant is supplied from the side by design.