Cylindrical roller bearing can be separated by single row, double rows and four rows.

This kind of bearing can be submitted to high radial load and some axial load.

The rolling elements of cylindrical roller bearing is cylinder, the two ends of the external line have the corrective slop which can eliminate the contact stress. NN and NNU design cylindrical roller bearing have the high rigid and apply to machine shaft ,FC ,FCD and FCDP design four rows to heavy machines such as millings.