Cylindrical Roller Bearings FAG NJ2211 -E-XL-TVP2

The FAG NJ2211 -E-XL-TVP2 cylindrical roller bearing, measuring 55 x 100 x 25 mm, offers high radial load-carrying capacity and single-sided axial guidance when used as a support bearing.

The single-row cylindrical roller bearing NJ2211 -E-XL-TVP2 from FAG, as a radial rolling bearing, primarily absorbs transverse forces. The cylindrical rollers create a broad line of contact with the raceways, giving the bearing high radial stiffness. The NJ design features two fixed flanges on the outer ring and one fixed flange on the inner ring. This design supports axial forces from one direction, whilst the inner ring remains removable from one side for mounting purposes.

When is the NJ2211 -E-XL-TVP2 cylindrical roller bearing suitable as a support bearing?

This bearing design is used in shaft mountings where, in addition to high radial forces, unidirectional axial loads are also present. Thanks to the flange on the inner ring, the design locks the shaft axially in one direction but allows a defined amount of axial movement in the opposite direction. This facilitates the compensation of thermal length changes in the shaft within the housing. The separable design also facilitates the separate installation of the inner and outer rings.

What role do the polyamide cage and bearing clearance play in the design?

The TVP2 polyamide cage guides the rolling elements with low friction and is characterised by its low weight. This choice of material reduces inertial forces during acceleration and promotes quiet operation within the temperature range of –30 to +120 degrees. The bearing is manufactured with standard radial clearance and complies with tolerance class P0/PN (ABEC 1). As this is an open bearing without an integrated seal, external sealing of the bearing housing against contamination must be provided.