Cylindrical Roller Bearings FAG NUP311 -E-XL-TVP2-C3

The FAG NUP311 -E-XL-TVP2-C3 cylindrical roller bearing, measuring 55x120x29 mm, offers high radial load-carrying capacity, C3 clearance and precise fixed-bearing performance for demanding industrial applications.

As an open roller bearing, the single-row cylindrical roller bearing NUP311 -E-XL-TVP2-C3 withstands very high radial forces and supports shafts axially in both directions. The line contact between the cylindrical rollers enables the bearing to withstand high radial forces. A dimensionally stable polyamide cage guides the rollers quietly. FAG manufactures this bearing to tolerance class P0/PN (ABEC 1), making it suitable for precisely guided shafts in general mechanical engineering.

What is the NUP311 -E-XL-TVP2-C3 cylindrical roller bearing suitable for as a fixed bearing?

Design engineers primarily use this design in bearing arrangements where high radial loads occur and the shaft needs to be axially fixed at both ends simultaneously. Typical applications include gearbox shafts and industrial drive shafts subjected to combined loads. The NUP design features two fixed flanges on the outer ring, as well as one fixed flange and one loose flange disc on the inner ring. This enables the bearing to accommodate axial forces in both directions without the need for a separate thrust bearing.

What do the C3 radial clearance and the polyamide cage mean for your operation?

The C3 designation indicates an increased radial clearance compared to the standard. This additional clearance compensates for operational heating or tight fits on the shaft and housing without causing the rollers to become stressed. The integrated polyamide cage (TVP2) reduces the weight of the rolling element set, dampens running noise and is designed for a temperature range of -30 °C to +120 °C. As this is an unsealed bearing without a lubrication groove in the outer ring, you can integrate it directly into your plant’s existing lubrication system.