Cylindrical Roller Bearings SKF NU210 ECP

The SKF NU210 ECP cylindrical roller bearing, with a 50 mm bore and a polyamide cage, offers a robust free-running bearing solution for purely radial forces.

The NU210 ECP cylindrical roller bearing is a single-row rolling bearing with an optimised internal design in the Explorer performance class. Thanks to the line contact between the cylindrical rollers and raceways, this design can accommodate very high radial loads. The open bearing has solid flanges on the outer ring, whilst the inner ring is flangeless. The main dimensions are 50 mm inner diameter, 90 mm outer diameter and 20 mm width.

In which bearing arrangements does the NU210 ECP cylindrical roller bearing compensate for changes in length?

This floating bearing is used in bearing arrangements where thermal linear expansion of the shaft must be compensated for without constraint. As the inner ring has no flange, the shaft moves axially relative to the housing without causing harmful stresses in the bearing system. Designs with separate fixed and floating bearing positions benefit from the high rigidity and load-carrying capacity of the roller row.

What advantages do the NU design and the polyamide cage offer?

The NU design allows for separate mounting: the inner and outer rings can be mounted independently of one another onto the shaft and housing. The polyamide cage guides the rolling elements with low vibration and keeps the weight to a minimum. The bearing is designed for a temperature range of -30 to +120 degrees. With standard clearance, dimensional accuracy to P0/ABEC 1 and increased running accuracy to P6/ABEC 3, the component fits precisely into demanding machine designs.