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Single row cylindrical roller bearings are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds. They are manufactured in several different designs, the main difference being in the configuration of the flanges. The most popular are the NU, N, NJ, NF,NH and NUP designs. The outer and inner rings of all types are separable.Types NU, N and NN are suitable as free-end bearings. Types NJ and NF can sustain limited axial loads in one direction. Types NH and NUP can be used as fixed-end bearings.

NH-type cylindrical roller bearings consist of the NJ-type cylindrical roller bearings and HJ-type L-shaped thrust collars.The inner ring loose rib of an NUP-type cylindrical roller bearing should be mounted so that the marked side is on the outside.