RKB cylindrical roller bearings with four or six rows have low cross section, high load carrying capacity and stiffness, and are particularly used for metal rolling equipment in mills, where the equipment has been scaled down and jet loads remain high.
These bearings are only able to accommodate radial loads, therefore they are mounted together with deep groove or angular contact ball bearings or with taper roller bearings which take up the axial loads. The four-row cylindrical roller bearings are of separable design, which considerably simplifies mounting, maintenance and inspection.
RKB cylindrical roller bearings can tolerate moderate to high shaft speeds. The rollers and outer races are carefully matched to ensure the best load distribution.
Inner rings (designation L) are interchangeable with other assemblies (designation R). Moreover, RKB multi row bearings allow direct interchange with main premium competitor products.
RKB has a flexible manufacturing program of different styles (also special) and sizes for multi row bearings.
They have cylindrical bore and some sizes are also available with tapered bore as required by the application or by maintenance request