Cylindrical Roller Bearings FAG NU317 -E-XL-TVP2-C3

The FAG NU317 -E-XL-TVP2-C3 cylindrical roller bearing, with a bore of 85 mm and an outer diameter of 180 mm, can withstand high radial loads.

This single-row NU317 -E-XL-TVP2-C3 cylindrical roller bearing from FAG is designed for industrial applications involving purely radial force transmission. Thanks to the line contact between the rollers and raceways, the bearing can withstand high radial forces. This design features a polyamide cage and the extended clearance class C3. As an open component without integrated seals, the bearing fits directly into lubricated housing assemblies.

When is the NU317 -E-XL-TVP2-C3 cylindrical roller bearing used?

In radially loaded shaft mountings, the bearing is primarily used as a non-locating bearing. The NU design features two fixed flanges on the outer ring, whilst the flangeless inner ring can be removed from both sides. This allows the bearing to compensate internally for axial changes in shaft length caused by thermal expansion during operation. The permissible temperature range is from –30 to +120 degrees Celsius.

What functions do the polyamide cage and the C3 bearing clearance fulfil in the NU317?

The suffix TVP2 denotes a polyamide cage, which, due to its low weight, reduces inertial forces during changes in rotational speed. The C3 bearing clearance provides greater radial clearance than the standard CN version. This additional clearance helps to prevent the rollers from jamming when tight fits on the shaft or temperature differences between the inner and outer rings narrow the operating clearance. When designing the bearing, the standard tolerances according to tolerance class P0/PN or ABEC 1 and an external lubrication supply must be taken into account.