Cylindrical Roller Bearings FAG NU2326 -E-XL-M1-C3

The FAG NU2326 -E-XL-M1-C3 cylindrical roller bearing, measuring 130 × 280 × 93 mm, provides a heavy-duty idler bearing with a robust brass cage.

This single-row radial roller bearing of the NU design, as a classic non-locating bearing, accommodates radial forces only. The outer ring guides the cylindrical rollers between fixed flanges, whilst the flangeless inner ring can be removed from both sides. As a result, the bearing compensates for axial length changes of the shaft relative to the housing without any constraint within the bearing. FAG manufactures this version with a brass cage and in tolerance class P0/PN or ABEC 1.

In which bearing arrangements is the NU2326 cylindrical roller bearing used?

This bearing is primarily used where high radial loads must be supported and axial expansion of the shaft occurs. Due to the line contact between the rollers and raceways, the design is specifically engineered to withstand high transverse forces. In bearing arrangements with a fixed and a floating bearing, the cylindrical roller bearing provides radial guidance, whilst compensating for thermal length changes without causing internal stresses.

What is the function of the brass cage and the C3 clearance?

The designation letter M1 indicates a brass cage. This material proves to be resistant to vibrations, shocks and lubricant additives during continuous operation. The increased radial clearance (C3) serves to compensate for reductions in operating clearance that may occur due to tight fits or temperature differences between the inner and outer rings. As this is an open bearing without seals, lubrication is supplied via the housing environment. The permissible temperature range is from -30 to +150 degrees Celsius.