We are offering single row cylindrical roller bearings. Single row cylindrical roller bearings are classified by ribs as types of n0000 without ribs on outer rings and with double ribs on inner rings; nu0000 without ribs on inner rings and with double ribs on outer rings; nj0000 with double ribs on outer rings and with single rib on inner rings; nf0000 with double ribs on inner rings and with single rib on outer rings; nup0000 with double ribs on outer rings and with single rib on inner rings and also with end rings etc.