ZARN needle roller / axial cylindrical roller bearings consist of an outer ring with radial and axial raceways, two shaft washers, an inner ring, a radial needle roller and cage assembly, and two axial cylindrical roller and cage assemblies. ZARN needle roller / axial cylindrical roller bearings do not have mounting holes. ZARN needle roller / axial cylindrical roller bearings are mounted in the housing bore and the outer ring is fixed by a bearing cover. The bearing is locked onto the shaft with a lock nut. With stepped locating washers ZARN..-L has a stepped locating washers that are extended on one side. These series are mostly used when the washers cannot be adequately supported axially by a shaft shoulder or when the washers cannot be sealed on the outside of the bearing unit due to external space restrictions in the adjacent construction. Needle roller / axial cylindrical roller bearings are not self-retaining bearings. The individual bearing components are matched to each other. The individual components of different bearings must not be interchanged during mounting.

ZARF needle roller/thrust cylindrical roller bearings consist of an outer ring with radial and axial raceways, two shaft washers, an inner ring, a radial needle roller and cage assembly, and two thrust cylindrical roller and cage assemblies. ZARF (L) needle roller/thrust cylindrical roller bearings have holes in the outer ring. These holes are used for direct mounting on the adjacent structure or in radial locating holes by means of bolts. The outer ring of the bearing is bolted, thus eliminating the need for additional bearing glands and fitting work. The bearing is locked onto the shaft by means of a lock nut. ZARF..-L has a single-sided extended stepped locating shaft washer. These series are mainly used when the shaft washer cannot be adequately supported axially by a shaft shoulder or when the shaft washer cannot be sealed on the outside of the bearing unit due to external space restrictions in the adjacent structure. Needle roller/thrust cylindrical roller bearings are not self-retaining bearings. The individual bearing components are matched to each other. Individual components of different bearings must not be interchanged during mounting.