The inner race is separated from the outer race and the rollers, so the rollers remain in the outer ring.

This in contrast to the SKF WL20/C2 bearing where the rollers remain mounted on the inner ring.

The NU2204-E-XL-TVP2 FAG is a single-row cylindrical roller bearing with cage with NU design.

This bearing consists of a solid inner and outer ring with cylindrical rollers in a cage. 

The outer ring of this bearing has two rigid ribs, while the inner ring has none.

As a result, NU bearings are only capable of supporting radial forces.

The NU2204-E-XL-TVP2 FAG is an X-life type cylindrical roller bearing. X-life bearings provide better performance than normal cylindrical roller bearings due to a special internal construction.

Contact surfaces, steel grade and rolling bodies are of a higher quality. X-life bearings combine a higher load capacity with a longer service life.

The bearings generate less heat and allow for higher speeds. Finally, X-life bearings allow for longer maintenance intervals compared to normal cylindrical roller bearings.